Exhibit 4.5

                                WARRANT AGREEMENT

      This Warrant Agreement (this "Warrant Agreement") dated as of _________,
2006, by and between Vector Intersect Security Acquisition Corp. a Delaware
corporation with offices at 65 Challenger Road, Ridgefield Park, New Jersey
07660 ("Company"), and American Stock Transfer & Trust Company, with offices at
59 Maiden Lane, New York, New York 10038, as warrant agent ( the "Warrant
Agent").

      WHEREAS, the Company is engaged in a public offering ("Public Offering")
of Units, each comprised of one share of the Company's Common Stock (as
hereinafter defined) and one Warrant (as hereinafter defined) (the "Units") and,
in connection therewith, has determined to issue and deliver (i) up to 8,517,188
Warrants ("Public Warrants") to the public investors, (ii) 93,750 Warrants to
the existing officers and directors of the Company through an entity they own
(the "Placement Warrants") in a concurrent private placement pursuant to that
certain Placement Unit Purchase Agreement dated ________, 2006 (the "Placement
Agreement") and (iii) 740,625 Warrants to Rodman & Renshaw LLC the
representative of the underwriters (the "Underwriters") with respect to the
Public Offering (the "Representative") or to the Representative's designees
("Representative's Warrants" and, together with the Public Warrants and the
Placement Warrants, the "Warrants"), each of such Warrants evidencing the right
of the holder thereof to purchase one share of common stock, par value $.001 per
share, of the Company's Common Stock ("Common Stock") for $5.00 in the case of
the Public Warrants and the Placement Warrants and $5.50 in the case of the
Representative's Warrants, subject to adjustment as described herein; and

      WHEREAS, the Company has filed with the Securities and Exchange Commission
(the "SEC") a Registration Statement, No. 333-127644 on Form S-1 (as may be
amended from time to time) ("Registration Statement") for the registration under
the Securities Act of 1933, as amended ("Act") of, among other securities, the
Public Warrants and the Representative's Warrants and the Common Stock issuable
upon exercise of the Public Warrants and the Representative's Warrants; and

      WHEREAS, the Company desires the Warrant Agent to act on behalf of the
Company, and the Warrant Agent is willing to so act, in connection with the
issuance, registration, transfer, exchange, redemption, exercise and
cancellation of the Warrants; and

      WHEREAS, the Company desires to provide for the form and provisions of the
Warrants, the terms upon which they shall be issued and exercised, and the
respective rights, limitation of rights, and immunities of the Company, the
Warrant Agent, and the holders of the Warrants; and

      WHEREAS, all acts and things have been done and performed which are
necessary to make the Warrants, when executed on behalf of the Company and
countersigned by or on behalf of the Warrant Agent, as provided herein, the
valid, binding and legal obligations of the Company, and to authorize the
execution and delivery of this Agreement.

      NOW, THEREFORE, in consideration of the mutual agreements herein
contained, the parties hereto agree as follows:




1.    Appointment of Warrant Agent. The Company hereby appoints the Warrant
Agent to act as agent for the Company for the Warrants, and the Warrant Agent
hereby accepts such appointment and agrees to perform the same in accordance
with the terms and conditions set forth in this Agreement.

2.    Warrants.

      2.1   Form of Warrant. Each Warrant shall be issued in registered form
only. Each Public Warrant, Placement Warrant and Representative Warrant shall be
in substantially the forms, respectively, of Exhibit A-1, Exhibit A-2 and
Exhibit A-3 hereto, the provisions of which are incorporated herein, and shall
be signed by, or bear the facsimile signature of, the Chairman of the Board or
Chief Executive Officer and Chief Financial Officer, Treasurer, Secretary or
Assistant Secretary of the Company and shall bear a facsimile of the Company's
seal. In the event the person whose facsimile signature has been placed upon any
Warrant shall have ceased to serve in the capacity in which such person signed
the Warrant before such Warrant is issued, it may be issued with the same effect
as if he or she had not ceased to be such at the date of issuance.

      2.2   Effect of Countersignature. Unless and until countersigned by the
Warrant Agent pursuant to this Agreement, a Warrant shall be invalid and of no
effect and may not be exercised by the holder thereof.

      2.3   Registration.

            2.3.1   Warrant Register. The Warrant Agent shall maintain books
("Warrant Register") for the registration of original issuance and the
registration of transfer of the Warrants. Upon the initial issuance of the
Warrants, the Warrant Agent shall issue and register the Warrants in the names
of the respective holders thereof in such denominations and otherwise in
accordance with instructions delivered to the Warrant Agent by the Company.

            2.3.2   Registered Holder. Prior to due presentment for registration
of transfer of any Warrant, the Company and the Warrant Agent may deem and treat
the person in whose name such Warrant shall be registered upon the Warrant
Register ("registered holder"), as the absolute owner of such Warrant and of
each Warrant represented thereby (notwithstanding any notation of ownership or
other writing on the Warrant Certificate made by anyone other than the Company
or the Warrant Agent), for the purpose of any exercise thereof, and for all
other purposes, and neither the Company nor the Warrant Agent shall be affected
by any notice to the contrary.

      2.4   Detachability of Warrants. The shares of Common Stock and Warrants
comprising the Units will not be separately transferable until the 20th trading
day following the earlier to occur of the expiration of the Underwriters'
Over-Allotment Option (as hereinafter defined) or the exercise in full by the
Underwriters of the Over-Allotment Option unless the Representative informs the
Company of its determination (based on its assessment of the relative strengths
of the securities markets and small capitalization companies in general and the
trading pattern of and demand for the Company's securities in particular) that
an earlier separate trading date is acceptable, but in no event will the
Representative allow separate trading of the securities


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comprising the Units until the Company files a Current Report on Form 8-K, that
includes an audited balance sheet reflecting the receipt by the Company of the
gross proceeds of the Public Offering including the proceeds received by the
Company from the exercise of the Underwriters' Over-Allotment Option, if the
Over-Allotment Option is exercised prior to the filing of the Form 8-K. For
purposes of this Warrant Agreement, the term "Over Allotment Option" shall mean
the option granted by the Company to the Underwriters, and exercisable until
________, 2006, to purchase from the Company at a price of $8.00 per Unit less
underwriting discounts, up to an aggregate of 1,110,938 Units for the sole
purpose of covering over-allotments, if any, in connection with the Public
Offering.

3.    Terms and Exercise of Warrants

      3.1   Warrant Price. Each Public Warrant and Placement Warrant shall, when
countersigned by the Warrant Agent, entitle the registered holder thereof,
subject to the provisions of such Public Warrant and Placement Warrant and of
this Warrant Agreement, to purchase from the Company the number of shares of
Common Stock stated therein, at the price of $5.00 per whole share, subject to
the adjustments provided in Section 4 hereof and in the last sentence of this
Section 3.1. Each Representative's Warrant shall, when countersigned by the
Warrant Agent, entitle the registered holder thereof, subject to the provisions
of such Representative's Warrant and of this Warrant Agreement, to purchase from
the Company the number of shares of Common Stock stated therein, at the price of
$5.50 per whole share, subject to the adjustments provided in Section 4 hereof
and in the last sentence of this Section 3.1. The term "Warrant Price" as used
in this Warrant Agreement refers to the price per share at which Common Stock
may be purchased at the time a Warrant is exercised. The Company in its sole
discretion may lower the Warrant Price at any time prior to the Expiration Date
(as hereinafter defined).

      3.2   Duration of Warrants. Subject to compliance with the terms set forth
in Section 3.3 hereof, a Warrant may be exercised only during the period
("Exercise Period") commencing on the later of (i) the date of consummation by
the Company of a merger, capital stock exchange, asset or stock acquisition or
other similar business combination with one or more Target Businesses (as
hereinafter defined) having a fair market value of at least 80% of the Company's
net assets at the time of such acquisition (a "Business Combination") or (ii)
__________, 2007 and terminating at 5:00 p.m., New York City time on the earlier
to occur of (x) __________, 2011 (the "Expiration Date") or (y) the Redemption
Date (as hereinafter defined). Except with respect to the right, if applicable,
to receive the Redemption Price (as hereinafter defined), in the case of
Warrants called for redemption in accordance with Section 6 hereof) each Warrant
not exercised on or before the earlier of the Redemption Date or the Expiration
Date shall become void, and all rights thereunder and all rights in respect
thereof under this Agreement shall cease at the close of business on the earlier
of the Redemption Date or the Expiration Date. The Company in its sole
discretion may extend the duration of the Warrants by delaying the Expiration
Date. Notwithstanding the foregoing, a Warrant may expire unexercised regardless
of whether a registration statement covering the sale of the Common Stock
underlying the Warrants is effective. For purposes of this Warrant Agreement,
the term "Target Business" shall mean an operating business based either in the
United States or abroad that conducts business in the homeland security,
national security and/or command and control industries or a business relating
to the manufacture of products for use in such industries.


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      3.3   Exercise of Warrants.

            3.3.1   Payment. Subject to the provisions of the Warrants and this
Warrant Agreement, a Warrant, when countersigned by the Warrant Agent, may be
exercised by the registered holder thereof by surrendering it, at the office of
the Warrant Agent, or, if applicable, at the office of its successor as Warrant
Agent, in the Borough of Manhattan, City and State of New York, with the
subscription form, as set forth in the Warrants, duly executed, and by paying in
full, the Warrant Price for each full share of Common Stock as to which the
Warrant is exercised and any and all applicable taxes due in connection with the
exercise of the Warrant, the exchange of the Warrant for the Common Stock, and
the issuance of the Common Stock. Payment of the Warrant Price shall be made
either (i) in cash or by certified or official bank check payable to the order
of the Company or (ii) on a cashless basis by surrendering Warrants held by such
holder to the Company. Upon the surrender of Warrants to the Company in payment
of the Warrant Price, a holder shall be entitled to receive therefor that number
of shares of Common Stock otherwise issuable upon exercise of such holder's
Warrants less that number of shares of Common Stock having a Fair Market Value
(as hereinafter defined) equal to the aggregate Warrant Price that would
otherwise have been paid by the holder of such Warrants. For purposes of this
Section 3.3.1, the term "Fair Market Value" shall mean the average reported last
sales price of the Common Stock for the last 10 trading days ending on the third
business day prior to the date on which notice of redemption of the Warrants is
given by the Company.

            3.3.2   Issuance of Certificates. As soon as practicable after the
exercise of any Warrant and, to the extent applicable, the clearance of the
funds in payment of the Warrant Price, the Company shall issue to the registered
holder of such Warrant a certificate or certificates for the number of full
shares of Common Stock to which he, she or it is entitled, registered in such
name or names as may be directed by him, her or it, and if such Warrant shall
not have been exercised in full, a new countersigned Warrant for the number of
shares as to which such Warrant shall not have been exercised. Notwithstanding
the foregoing, the Company shall not be obligated to deliver any securities
pursuant to the exercise of a Warrant unless (i) a registration statement under
the Act with respect to the Common Stock issuable upon the exercise of such
Warrant is effective, or (ii) in the opinion of counsel to the Company, the
exercise of such Warrant is exempt from the registration requirements of the Act
and the shares of Common Stock issuable upon exercise of such Warrant are
qualified for sale or exempt from qualification under applicable securities laws
of the states or other jurisdictions in which the registered holder(s) thereof
reside. Warrants may not be exercised by, or securities issued to, any
registered holder in any state in which such exercise or issuance would be
unlawful. In no event will the registered holder of the Warrant be entitled to
receive a net-cash settlement, shares of Common Stock or other consideration in
lieu of physical settlement in shares of Common Stock, regardless of whether the
Common Stock underlying the Warrants is registered pursuant to an effective
registration statement.

            3.3.3   Valid Issuance. All shares of Common Stock issued upon the
proper exercise of a Warrant in conformity with this Agreement shall be validly
issued, fully paid and nonassessable.

            3.3.4   Date of Issuance. Each person in whose name any such
certificate for shares of Common Stock is issued shall for all purposes be
deemed to have become the holder of


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record of such shares on the date on which the Warrant was surrendered and
payment of the Warrant Price was made, irrespective of the date of delivery of
such certificate, except that, if the date of such surrender and payment is a
date when the stock transfer books of the Company are closed, such person shall
be deemed to have become the holder of such shares at the close of business on
the next succeeding date on which the stock transfer books are open.

4.    Adjustments.

      4.1   Stock Dividends/Split Ups. If after the date hereof, and subject to
the provisions of Section 4.6 below, the number of outstanding shares of Common
Stock is increased by a stock dividend payable in shares of Common Stock, or by
a split up or reclassification of shares of Common Stock, or other similar
event, then, on the effective date of such stock dividend, split up,
reclassification or similar event, the number of shares of Common Stock issuable
on exercise of each Warrant shall be increased in proportion to such increase in
outstanding shares of Common Stock.

      4.2   Aggregation of Shares. If after the date hereof, and subject to the
provisions of Section 4.6, the number of outstanding shares of Common Stock is
decreased by a consolidation, combination, reverse stock split or
reclassification of shares of Common Stock or other similar event, then, on the
effective date of such consolidation, combination, reverse stock split,
reclassification or similar event, the number of shares of Common Stock issuable
on exercise of each Warrant shall be decreased in proportion to such decrease in
outstanding shares of Common Stock.

      4.3   Adjustments in Warrant Price. Whenever the number of shares of
Common Stock purchasable upon the exercise of the Warrants is adjusted, as
provided in Section 4.1 and 4.2 above, the Warrant Price shall be adjusted (to
the nearest cent) by multiplying such Warrant Price immediately prior to such
adjustment by a fraction (x) the numerator of which shall be the number of
shares of Common Stock purchasable upon the exercise of the Warrants immediately
prior to such adjustment, and (y) the denominator of which shall be the number
of shares of Common Stock so purchasable immediately thereafter.

      4.4   Replacement of Securities upon Reorganization, etc. In case of any
reclassification or reorganization of the outstanding shares of Common Stock
(other than a change covered by Section 4.1 or 4.2 hereof or that solely affects
the par value of such shares of Common Stock), or in the case of any merger or
consolidation of the Company with or into another corporation (other than a
consolidation or merger in which the Company is the continuing corporation and
that does not result in any reclassification or reorganization of the
outstanding shares of Common Stock), or in the case of any sale or conveyance to
another corporation or entity of the assets or other property of the Company as
an entirety or substantially as an entirety in connection with which the Company
is dissolved, the Warrant holders shall thereafter have the right to purchase
and receive, upon the basis and upon the terms and conditions specified in the
Warrants and in lieu of the shares of Common Stock of the Company immediately
theretofore purchasable and receivable upon the exercise of the rights
represented thereby, the kind and amount of shares of stock or other securities
or property (including cash) receivable upon such reclassification,
reorganization, merger or consolidation, or upon a dissolution following any
such sale or transfer, that the Warrant holder would have


                                        5



received if such Warrant holder had exercised his, her or its Warrant(s)
immediately prior to such event; and if any reclassification also results in a
change in shares of Common Stock covered by Section 4.1 or 4.2, then such
adjustment shall be made pursuant to Sections 4.1, 4.2, 4.3 and this Section
4.4. The provisions of this Section 4.4 shall similarly apply to successive
reclassifications, reorganizations, mergers or consolidations, sales or other
transfers.

      4.5   Notices of Changes in Warrant. Upon every adjustment of the Warrant
Price or the number of shares issuable on exercise of a Warrant, the Company
shall give written notice thereof to the Warrant Agent, which notice shall state
the Warrant Price resulting from such adjustment and the increase or decrease,
if any, in the number of shares purchasable at such price upon the exercise of a
Warrant, setting forth in reasonable detail the method of calculation and the
facts upon which such calculation is based. Upon the occurrence of any event
specified in Sections 4.1, 4.2, 4.3 or 4.4, then, in any such event, the Company
shall give written notice to the Warrant holder, at the last address set forth
for such holder in the Warrant Register, of the record date or the effective
date of the event. Failure to give such notice, or any defect therein, shall not
affect the legality or validity of such event.

      4.6   No Fractional Shares. Notwithstanding any provision contained in
this Warrant Agreement to the contrary, the Company shall not issue fractional
shares upon exercise of Warrants. If, by reason of any adjustment made pursuant
to this Section 4, the holder of any Warrant would be entitled, upon the
exercise of such Warrant, to receive a fractional interest in a share, the
Company shall, upon such exercise, round up to the nearest whole number the
number of the shares of Common Stock to be issued to the Warrant holder.

      4.7   Forms of Warrants. The forms of the Public Warrants, the Placement
Warrants and the Representatives Warrants need not be changed because of any
adjustment pursuant to this Section 4, and Warrants issued after such adjustment
may state the same Warrant Price and the same number of shares as is stated in
the Warrants initially issued pursuant to this Agreement. However, the Company
may at any time in its sole discretion make any change in the form of any
Warrant that the Company may deem appropriate and that does not affect the
substance thereof, and any Warrant thereafter issued or countersigned, whether
in exchange or substitution for an outstanding Warrant or otherwise, may be in
the form as so changed.

5.    Transfer and Exchange of Warrants.

      5.1   Registration of Transfer. The Warrant Agent shall register the
transfer, from time to time, of any outstanding Warrant upon the Warrant
Register, upon surrender of such Warrant for transfer, properly endorsed with
signatures properly guaranteed and accompanied by appropriate instruction. Upon
any such transfer, a new Warrant representing an equal aggregate number of
Warrants shall be issued and the old Warrant shall be cancelled by the Warrant
Agent. The Warrants so cancelled shall be delivered by the Warrant Agent to the
Company from time to time upon request.

      5.2   Procedure for Surrender of Warrants. Warrants may be surrendered to
the Warrant Agent, together with a written request for exchange or transfer, and
thereupon the Warrant Agent shall issue in exchange therefor one or more new
Warrants as requested by the registered holder of the Warrants so surrendered,
representing an equal aggregate number of


                                        6



Warrants; provided, however, that in the event that a Warrant surrendered for
transfer bears a restrictive legend, the Warrant Agent shall not cancel such
Warrant and issue new Warrants in exchange therefor until the Warrant Agent has
received an opinion of counsel for the Company stating that such transfer may be
made and indicating whether the new Warrants must also bear a restrictive
legend.

      5.3   Fractional Warrants. The Warrant Agent shall not be required to
effect any registration of transfer or exchange which will result in the
issuance of a warrant certificate for a fraction of a warrant.

      5.4   Service Charges. No service charge shall be made for any exchange or
registration of transfer of Warrants.

      5.5   Warrant Execution and Countersignature. The Warrant Agent is hereby
authorized to countersign and to deliver, in accordance with the terms of this
Agreement, the Warrants required to be issued pursuant to the provisions of this
Section 5, and the Company, whenever required by the Warrant Agent, will supply
the Warrant Agent with Warrants duly executed on behalf of the Company for such
purpose.

6.    Redemption.

      6.1   Redemption. Subject to Section 6.4 hereof, not less than all of the
outstanding Warrants may be redeemed, at the option of the Company, at any time
after they become exercisable and prior to their expiration, at the office of
the Warrant Agent, upon the notice referred to in Section 6.2, at the price of
$.01 per Warrant (the "Redemption Price"), provided that the last sales price of
the Common Stock has been equal to or greater than $11.50 per share, on each of
twenty (20) trading days within any thirty (30) trading day period ending on the
third business day prior to the date on which notice of redemption is given.
Notwithstanding the foregoing, the registration statement with respect to the
shares of Common Stock for which the Warrants are exercisable must be current in
order for the Company to exercise its redemption rights pursuant to this Section
6. The provisions of this Section 6.1 may not be modified, amended or deleted
without the prior written consent of the Representative.

      6.2   Date Fixed for, and Notice of, Redemption. In the event the Company
shall elect to redeem all of the Warrants, the Company shall fix a date and time
for the redemption (the "Redemption Date"). Notice of redemption shall be mailed
by first class mail, postage prepaid, by the Company not less than 30 days prior
to the Redemption Date to the registered holders of the Warrants to be redeemed
at their last addresses as they shall appear on the Warrant Register. Any notice
mailed in the manner herein provided shall be conclusively presumed to have been
duly given whether or not the registered holder received such notice.

      6.3   Exercise After Notice of Redemption. The Warrants may be exercised
in accordance with Section 3 of this Warrant Agreement at any time after notice
of redemption shall have been given by the Company pursuant to Section 6.2
hereof and prior to the Redemption Date. On and after the Redemption Date, the
record holder of the Warrants shall have no further rights except to receive,
upon surrender of the Warrants, the Redemption Price.


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      6.4   Outstanding Warrants Only. The Company understands that the
redemption rights provided for by this Section 6 apply only to outstanding
Warrants. To the extent a person holds rights to purchase Warrants, such
purchase rights shall not be extinguished by redemption. However, once such
purchase rights are exercised, the Company may redeem the Warrants issued upon
such exercise provided that the criteria for redemption are met, including the
opportunity of the Warrant holder to exercise prior to redemption pursuant to
Section 6.3. The provisions of this Section 6.4 may not be modified, amended or
deleted without the prior written consent of the Representative.

7.    Other Provisions Relating to Rights of Holders of Warrants.

      7.1   No Rights as Stockholder. A Warrant does not entitle the registered
holder thereof to any of the rights of a stockholder of the Company, including,
without limitation, the right to receive dividends, or other distributions,
exercise any preemptive rights to vote or to consent or to receive notice as
stockholders in respect of the meetings of stockholders or the election of
directors of the Company or any other matter.

      7.2   Lost, Stolen, Mutilated, or Destroyed Warrants. If any Warrant is
lost, stolen, mutilated, or destroyed, the Company and the Warrant Agent may on
such terms as to indemnity or otherwise as they may in their discretion impose
(which shall, in the case of a mutilated Warrant, include the surrender
thereof), issue a new Warrant of like denomination, tenor, and date as the
Warrant so lost, stolen, mutilated, or destroyed. Any such new Warrant shall
constitute a substitute contractual obligation of the Company, whether or not
the allegedly lost, stolen, mutilated, or destroyed Warrant shall be at any time
enforceable by anyone.

      7.3   Reservation of Common Stock. The Company shall at all times reserve
and keep available a number of its authorized but unissued shares of Common
Stock that will be sufficient to permit the exercise in full of all outstanding
Warrants issued pursuant to this Warrant Agreement.

      7.4   Registration of Common Stock. The Company agrees that prior to the
commencement of the Exercise Period, it shall file with the SEC a post-effective
amendment to the Registration Statement, or a new registration statement, for
the registration, under the Act of the Common Stock issuable upon exercise of
the Warrants, and it shall take such action as is necessary to qualify for sale,
in those states in which the Warrants were initially offered by the Company, the
Common Stock issuable upon exercise of the Warrants. In either case, the Company
will use its best efforts to cause the same to become effective on or prior to
the commencement of the Exercise Period and to maintain the effectiveness of
such registration statement until the earlier of the Redemption Date or the
Expiration Date in accordance with the provisions of this Warrant Agreement. In
addition, the Company agrees to use its reasonable efforts to register such
securities under the blue sky laws of the states of residence of exercising
warrant holders, if permitted by the blue sky laws of such jurisdictions, in the
event that an exemption is not available. Notwithstanding the foregoing, a
Warrant may expire worthless regardless of whether a registration statement is
current under the Act with respect to the Common Stock issuable upon exercise of
the Warrants. In no event will the registered holder of a Warrant be entitled to
receive a net-cash settlement, shares of Common Stock or other consideration in
lieu of physical settlement in shares of Common Stock, regardless of whether


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the Company complies with this Section 7.4. The provisions of this Section 7.4
may not be modified, amended or deleted without the prior written consent of the
Representative.

8.    Concerning the Warrant Agent and Other Matters.

      8.1   Payment of Taxes. The Company will from time to time promptly pay
all taxes and charges that may be imposed upon the Company or the Warrant Agent
in respect of the issuance or delivery of shares of Common Stock upon the
exercise of Warrants, but the Company shall not be obligated to pay any transfer
taxes in respect of the Warrants or such shares.

      8.2   Resignation, Consolidation, or Merger of Warrant Agent.

            8.2.1   Appointment of Successor Warrant Agent. The Warrant Agent,
or any successor to it hereafter appointed, may resign its duties and be
discharged from all further duties and liabilities hereunder after giving sixty
(60) days' notice in writing to the Company. If the office of the Warrant Agent
becomes vacant by resignation or incapacity to act or otherwise, the Company
shall appoint in writing a successor Warrant Agent in place of the Warrant
Agent. If the Company shall fail to make such appointment within a period of 30
days after it has been notified in writing of such resignation or incapacity by
the Warrant Agent or by the holder of the Warrant (who shall, with such notice,
submit his Warrant for inspection by the Company), then the holder of any
Warrant may apply to the Supreme Court of the State of New York for the County
of New York for the appointment of a successor Warrant Agent at the Company's
cost. Any successor Warrant Agent, whether appointed by the Company or by such
court, shall be a corporation having its principal office in the Borough of
Manhattan, City and State of New York, and authorized under such laws to
exercise corporate trust powers and subject to supervision or examination by
federal or state authority. After appointment, any successor Warrant Agent shall
be vested with all the authority, powers, rights, immunities, duties, and
obligations of its predecessor Warrant Agent with like effect as if originally
named as Warrant Agent hereunder, without any further act or deed; but if for
any reason it becomes necessary or appropriate, the predecessor Warrant Agent
shall execute and deliver, at the expense of the Company, an instrument
transferring to such successor Warrant Agent all the authority, powers, and
rights of such predecessor Warrant Agent hereunder; and upon request of any
successor Warrant Agent the Company shall make, execute, acknowledge, and
deliver any and all instruments in writing for more fully and effectually
vesting in and confirming to such successor Warrant Agent all such authority,
powers, rights, immunities, duties, and obligations.

            8.2.2   Notice of Successor Warrant Agent. In the event a successor
Warrant Agent shall be appointed, the Company shall give notice thereof to the
predecessor Warrant Agent and the transfer agent for the Common Stock not later
than the effective date of any such appointment.

            8.2.3   Merger or Consolidation of Warrant Agent. Any corporation
into which the Warrant Agent may be merged or with which it may be consolidated
or any corporation resulting from any merger or consolidation to which the
Warrant Agent shall be a party shall be the successor Warrant Agent under this
Warrant Agreement without any further act.


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      8.3   Fees and Expenses of Warrant Agent.

            8.3.1   Remuneration. The Company agrees to pay the Warrant Agent
reasonable remuneration for its services as such Warrant Agent hereunder as set
forth on Exhibit B hereto, and will reimburse the Warrant Agent upon demand for
all expenditures that the Warrant Agent may reasonably incur in the execution of
its duties hereunder.

            8.3.2   Further Assurances. The Company agrees to perform, execute,
acknowledge, and deliver or cause to be performed, executed, acknowledged, and
delivered all such further and other acts, instruments, and assurances as may
reasonably be required by the Warrant Agent for the carrying out or performing
of the provisions of this Warrant Agreement.

      8.4   Liability of Warrant Agent.

            8.4.1   Reliance on Company Statement. Whenever in the performance
of its duties under this Warrant Agreement, the Warrant Agent shall deem it
necessary or desirable that any fact or matter be proved or established by the
Company prior to taking or suffering any action hereunder, such fact or matter
(unless other evidence in respect thereof be herein specifically prescribed) may
be deemed to be conclusively proved and established by a statement signed by the
Chief Executive Officer, Chairman of the Board or Chief Financial Officer of the
Company and delivered to the Warrant Agent. The Warrant Agent may rely upon such
statement for any action taken or suffered in good faith by it pursuant to the
provisions of this Warrant Agreement.

            8.4.2   Indemnity. The Warrant Agent shall be liable hereunder only
for its own negligence, willful misconduct or bad faith. The Company agrees to
indemnify the Warrant Agent and save it harmless against any and all
liabilities, including judgments, costs and reasonable counsel fees, for
anything done or omitted by the Warrant Agent in the execution of this Warrant
Agreement except as a result of the Warrant Agent's negligence, willful
misconduct, or bad faith.

            8.4.3   Exclusions. The Warrant Agent shall have no responsibility
with respect to the validity of this Warrant Agreement or with respect to the
validity or execution of any Warrant (except its countersignature thereof); nor
shall it be responsible for any breach by the Company of any covenant or
condition contained in this Warrant Agreement or in any Warrant; nor shall it be
responsible to make any adjustments required under the provisions of Section 4
hereof or responsible for the manner, method, or amount of any such adjustment
or the ascertaining of the existence of facts that would require any such
adjustment; nor shall it by any act hereunder be deemed to make any
representation or warranty as to the authorization or reservation of any shares
of Common Stock to be issued pursuant to this Warrant Agreement or any Warrant
or as to whether any shares of Common Stock will when issued be valid and fully
paid and nonassessable.

      8.5   Acceptance of Agency. The Warrant Agent hereby accepts the agency
established by this Warrant Agreement and agrees to perform the same upon the
terms and conditions herein set forth and among other things, shall account
promptly to the Company with respect to Warrants exercised and concurrently
account for, and pay to the Company, all moneys


                                       10



received by the Warrant Agent for the purchase of shares of the Company's Common
Stock through the exercise of Warrants.

9.    Miscellaneous Provisions.

      9.1   Successors. All the covenants and provisions of this Warrant
Agreement by or for the benefit of the Company or the Warrant Agent shall bind
and inure to the benefit of their respective successors and assigns.

      9.2   Notices. Any notice or other communication required or which may be
given hereunder shall be in writing and either be delivered personally or by
private national courier service, or be mailed, certified or registered mail,
return receipt requested, postage prepaid, and shall be deemed given when so
delivered personally or, if sent by private national courier service, on the
next business day after delivery to the courier, or, if mailed, two business
days after the date of mailing, as follows:

                    Vector Intersect Security Acquisition Corp.
                    65 Challenger Road
                    Ridgefield Park, New Jersey 07660
                    Attn:  Yaron Eitan

Any notice, statement or demand authorized by this Warrant Agreement to be given
or made by the holder of any Warrant or by the Company to or on the Warrant
Agent shall be sufficiently given when so delivered if by hand or overnight
delivery or if sent by certified mail or private courier service five days after
deposit of such notice, postage prepaid, addressed (until another address is
filed in writing by the Warrant Agent with the Company), as follows:

                    American Stock Transfer & Trust Company
                    59 Maiden Lane
                    New York, New York 10038
                    Attn:  Compliance Department

with a copy in each case to:

                    Loeb & Loeb LLP
                    345 Park Avenue
                    New York, New York 10154
                    Attn:  Mitchell S. Nussbaum, Esq.

and

                    Rodman & Renshaw, LLC
                    1270 Avenue of the Americas
                    New York, New York 10020
                    Attn:  Thomas Pinou, Chief Financial Officer

and


                                       11



                    Morse Zelnick Rose & Lander, LLP
                    405 Park Avenue
                    Suite 1401
                    New York, New York 10022
                    Attn:  Kenneth S. Rose, Esq.

      9.3   Applicable law. The validity, interpretation, and performance of
this Warrant Agreement and of the Warrants shall be governed in all respects by
the laws of the State of New York, without giving effect to conflict of laws.
The Company hereby agrees that any action, proceeding or claim against it
arising out of or relating in any way to this Warrant Agreement shall be brought
and enforced in the courts of the State of New York or the United States
District Court for the Southern District of New York, and irrevocably submits to
such jurisdiction, which jurisdiction shall be exclusive. The Company hereby
waives any objection to such exclusive jurisdiction and that such courts
represent an inconvenient forum. Any such process or summons to be served upon
the Company may be served by transmitting a copy thereof by registered or
certified mail, return receipt requested, postage prepaid, addressed to it at
the address set forth in Section 9.2 hereof. Such mailing shall be deemed
personal service and shall be legal and binding upon the Company in any action,
proceeding or claim.

      9.4   Persons Having Rights under this Warrant Agreement. Nothing in this
Warrant Agreement expressed and nothing that may be implied from any of the
provisions hereof is intended, or shall be construed, to confer upon, or give
to, any person or corporation other than the parties hereto and the registered
holders of the Warrants and, for the purposes of Sections 6.1, 6.4, 7.4, 9.2 and
9.8 hereof, the Representative, any right, remedy, or claim under or by reason
of this Warrant Agreement or of any covenant, condition, stipulation, promise,
or agreement hereof. The Representative shall be deemed to be a third-party
beneficiary of this Warrant Agreement with respect to Sections 6.1, 6.4, 7.4,
9.2 and 9.8 hereof. All covenants, conditions, stipulations, promises, and
agreements contained in this Warrant Agreement shall be for the sole and
exclusive benefit of the parties hereto (and the Representative with respect to
the Sections 6.1, 6.4, 7.4, 9.2 and 9.8 hereof) and their successors and assigns
and of the registered holders of the Warrants.

      9.5   Examination of the Warrant Agreement. A copy of this Warrant
Agreement shall be available at all reasonable times at the office of the
Warrant Agent in the Borough of Manhattan, City and State of New York, for
inspection by the registered holder of any Warrant. The Warrant Agent may
require any such holder to submit his Warrant for inspection by it.

      9.6   Counterparts. This Warrant Agreement may be executed in any number
of counterparts and each of such counterparts shall for all purposes be deemed
to be an original, and all such counterparts shall together constitute but one
and the same instrument.

      9.7   Effect of Headings. The Section headings herein are for convenience
only and are not part of this Warrant Agreement and shall not affect the
interpretation thereof.

      9.8   Amendments. This Warrant Agreement may be amended by the parties
hereto without the consent of any registered holder for the purpose of curing
any ambiguity, or of curing, correcting or supplementing any defective provision
contained herein or adding or


                                       12



changing any other provisions with respect to matters or questions arising under
this Warrant Agreement as the parties may deem necessary or desirable and that
the parties deem shall not adversely affect the interest of the registered
holders. All other modifications or amendments, including any amendment to
increase the Warrant Price or shorten the Exercise Period, shall require the
written consent of each of the Representative and the registered holders of a
majority of the then outstanding Warrants. Notwithstanding the foregoing, the
Company may lower the Warrant Price or extend the duration of the Exercise
Period in accordance with Sections 3.1 and 3.2, respectively, without such
consent.

      9.9   Severability. This Warrant Agreement shall be deemed severable, and
the invalidity or unenforceability of any term or provision hereof shall not
affect the validity or enforceability of this Warrant Agreement or of any other
term or provision hereof. Furthermore, in lieu of any such invalid or
unenforceable term or provision, the parties hereto intend that there shall be
added as a part of this Warrant Agreement a provision as similar in terms to
such invalid or unenforceable provision as may be possible and be valid and
enforceable.


                                       13



      IN WITNESS WHEREOF, this Warrant Agreement has been duly executed by the
parties hereto as of the day and year first above written.

Attest:                               VECTOR INTERSECT SECURITY ACQUISITION
                                      CORP.

                                      By: ______________________________________
__________________________________        Name:
                                          Title:


Attest:                               AMERICAN STOCK TRANSFER & TRUST COMPANY


__________________________________    By: ______________________________________
                                          Name:
                                          Title:


                                       14



                                                                     EXHIBIT A-1

                        SPECIMEN WARRANT CERTIFICATE FOR
                                 PUBLIC WARRANT

NUMBER                                                                  WARRANTS
__________-

                          (SEE REVERSE SIDE FOR LEGEND)
         (THIS WARRANT WILL BE VOID IF NOT EXERCISED PRIOR TO 5:00 P.M.
                      NEW YORK CITY TIME, __________, 2011

                   VECTOR INTERSECT SECURITY ACQUISITION CORP.

                                                                           CUSIP

                                     WARRANT

THIS CERTIFIES THAT, for value received

is the registered holder of a Warrant or Warrants expiring ________, 2011 (the
"Warrant") to purchase one fully paid and non-assessable share of Common Stock,
par value $.001 per share ("Shares"), of VECTOR INTERSECT SECURITY ACQUISITION
CORP., a Delaware corporation (the "Company"), for each Warrant evidenced by
this Warrant Certificate. Subject to the conditions set forth herein and in the
Warrant Agreement dated as of ______, 2006 by and between the Company and the
Warrant Agent (the "Warrant Agreement"). The Warrant entitles the holder thereof
to purchase from the Company, commencing on the later of (i) the Company's
completion of a Business Combination with a Target Business or (ii) __________,
2007, and terminating at 5:00 p.m., New York City time on the earlier to occur
of (x) ______, 2011 (the "Expiration Date") or (y) the Redemption Date such
number of Shares of the Company at the price of $5.00 per share, upon surrender
of this Warrant Certificate and payment of the Warrant Price at the office or
agency of the Warrant Agent, American Stock Transfer & Trust Company. Payment of
the Warrant Price may be made at the option of the holder of the Warrant either
in cash or by certified or official bank check payable to the order of the
Company or on a cashless basis by surrendering Warrant's held by the holder to
the Company. The Warrant Agreement provides that upon the occurrence of certain
events the Warrant Price and the number of Warrant Shares purchasable hereunder,
set forth on the face hereof, may, subject to certain conditions, be adjusted.
The term Warrant Price as used in this Warrant Certificate refers to the price
per Share at which Shares may be purchased at the time the Warrant is exercised.
Capitalized terms used in this Warrant Certificate without definition shall have
the respective meanings ascribed to such terms in the Warrant Agreement.

      No fraction of a Share will be issued upon any exercise of a Warrant. If,
upon exercise of a Warrant, a holder would be entitled to receive a fractional
interest in a Share, the Company will, upon exercise, round up to the nearest
whole number the number of shares of common stock to be issued to the warrant
holder.

      Upon any exercise of the Warrant for less than the total number of full
Shares provided for herein, there shall be issued to the registered holder
hereof or his assignee a new Warrant Certificate covering the number of Shares
for which the Warrant has not been exercised.

      Warrant Certificates, when surrendered at the office or agency of the
Warrant Agent by the registered holder hereof in person or by attorney duly
authorized in writing, may be exchanged in the manner and subject to the
limitations provided in the Warrant Agreement, but without payment of any


                                      A-1-1



service charge, for another Warrant Certificate or Warrant Certificates of like
tenor and evidencing in the aggregate a like number of Warrants.

      Upon due presentment for registration of transfer of the Warrant
Certificate at the office or agency of the Warrant Agent, a new Warrant
Certificate or Warrant Certificates of like tenor and evidencing in the
aggregate a like number of Warrants shall be issued to the transferee in
exchange for this Warrant Certificate, subject to the limitations provided in
the Warrant Agreement, without charge except for any applicable tax or other
governmental charge.

      The Company and the Warrant Agent may deem and treat the registered holder
as the absolute owner of this Warrant Certificate (notwithstanding any notation
of ownership or other writing hereon made by anyone), for the purpose of any
exercise hereof, of any distribution to the registered holder, and for all other
purposes, and neither the Company nor the Warrant Agent shall be affected by any
notice to the contrary.

      This Warrant does not entitle the registered holder to any of the rights
of a stockholder of the Company.

      The Company reserves the right to redeem all of the outstanding Warrants
at any time after they become exercisable and prior to the Expiration Date upon
a notice of redemption in writing to the holders of record of the Warrants,
giving no less than 30 days' notice of such redemption if the last sale price of
the Shares has been equal to or greater than $11.50 per Share on each of 20
trading days within a 30 trading day period ending on the third business day
prior to the date on which notice of such redemption is given. The redemption
price of the Warrants is to be $.01 per Warrant. Any Warrant either not
exercised or tendered back to the Company by the Redemption Date shall be
canceled on the books of the Company and have no further value except for the
$.01 redemption price.


                                      A-1-2



      This Warrant Certificate shall not be valid or obligatory for any purpose
until it shall have been countersigned by the Warrant Agent.

                                      VECTOR INTERSECT SECURITY ACQUISITION
                                      CORP.

                                      By: ______________________________________
                                          Title:

[SEAL]

Attest: ____________________________
        Secretary

DATED:

Countersigned:

AMERICAN STOCK TRANSFER &
TRUST COMPANY, as Warrant Agent

By: ________________________________
    Authorized Signatory


                                      A-1-3



           [FORM OF REVERSE OF WARRANT CERTIFICATE FOR PUBLIC WARRANT]

THE WARRANTS REPRESENTED BY THIS CERTIFICATE WERE INITIALLY ISSUED AS PART OF AN
ISSUANCE OF UNITS, EACH OF WHICH CONSISTS OF ONE SHARE OF COMMON STOCK, PAR
VALUE $.001 ("COMMON STOCK") OF VECTOR INTERSECT SECURITY ACQUISITION CORP. (THE
"COMPANY") AND ONE WARRANT. THE WARRANTS REPRESENTED BY THIS CERTIFICATE WILL
NOT BE SEPARATELY TRANSFERABLE UNTIL THE 20TH TRADING DAY FOLLOWING THE EARLIER
TO OCCUR OF THE EXPIRATION OF THE UNDERWRITERS' OVER-ALLOTMENT OPTION OR THE
EXERCISE IN FULL BY THE UNDERWRITERS OF THE OVER-ALLOTMENT OPTION UNLESS RODMAN
& RENSHAW LLC INFORMS THE COMPANY OF ITS DETERMINATION THAT AN EARLIER SEPARATE
TRADING DATE IS ACCEPTABLE AND THE COMPANY HAS MADE CERTAIN PUBLIC FILINGS WITH
THE SECURITIES AND EXCHANGE COMMISSION (THE "SEC") AS OF SUCH DETERMINED EARLIER
SEPARATE TRADING DATE.

THE COMMON STOCK OF THE COMPANY FOR WHICH THIS WARRANT IS EXERCISABLE MAY NOT BE
OFFERED OR SOLD IN THE UNITED STATES ABSENT REGISTRATION UNDER THE SECURITIES
ACT OF 1933, AS AMENDED (THE "SECURITIES ACT"), AND ANY APPLICABLE STATE
SECURITIES LAWS OR AN APPLICABLE EXEMPTION FROM SUCH REGISTRATION REQUIREMENTS.
ACCORDINGLY, NO HOLDER SHALL BE ENTITLED TO EXERCISE SUCH HOLDER'S WARRANTS AT
ANY TIME UNLESS, AT THE TIME OF EXERCISE (i) A REGISTRATION STATEMENT UNDER THE
SECURITIES ACT RELATING TO THE SHARES OF COMMON STOCK ISSUABLE UPON THE EXERCISE
OF THIS WARRANT HAS BEEN FILED WITH, AND DECLARED EFFECTIVE BY, THE SEC, AND NO
STOP ORDER SUSPENDING THE EFFECTIVENESS OF SUCH REGISTRATION STATEMENT HAS BEEN
ISSUED BY THE SEC, OR (ii) THE ISSUANCE OF SUCH SHARES IS PERMITTED PURSUANT TO
AN EXEMPTION FROM THE REGISTRATION REQUIREMENTS OF THE SECURITIES ACT AND ANY
APPLICABLE STATE SECURITIES LAWS.

THE HOLDER OF THIS SECURITY, BY ITS ACCEPTANCE HEREOF AGREES TO OFFER, SELL OR
OTHERWISE TRANSFER THIS SECURITY ONLY (A) TO THE COMPANY, (B) PURSUANT TO A
REGISTRATION STATEMENT WHICH HAS BEEN DECLARED EFFECTIVE UNDER THE SECURITIES
ACT OR (C) PURSUANT TO AN EXEMPTION FROM THE REGISTRATION REQUIREMENTS OF THE
SECURITIES ACT, SUBJECT TO THE COMPANY'S AND THE WARRANT AGENT'S RIGHT PRIOR TO
ANY OFFER, SALE OR TRANSFER (i) PURSUANT TO CLAUSE (C) TO REQUIRE THE DELIVERY
OF AN OPINION OF COUNSEL, CERTIFICATION AND OTHER INFORMATION SATISFACTORY TO
EACH OF THEM THAT THE TRANSFER COMPLIES WITH THE FOREGOING RESTRICTIONS AND (ii)
IN EACH OF THE FOREGOING CASES, TO REQUIRE A CERTIFICATE OF ASSIGNMENT IN THE
FORM APPEARING ON THE OTHER SIDE OF THESE SECURITIES IS COMPLETED AND DELIVERED
BY THE TRANSFEROR TO THE WARRANT AGENT.


                                      A-1-4



                                SUBSCRIPTION FORM
      To Be Executed by the Registered Holder in Order to Exercise Warrants

The undersigned Registered Holder irrevocably elects to exercise ______________
Warrants represented by this Warrant Certificate, and to purchase the shares of
Common Stock issuable upon the exercise of such Warrants, and requests that
Certificates for such shares shall be issued in the name of

________________________________________________________________________________
                     (PLEASE TYPE OR PRINT NAME AND ADDRESS)

________________________________________________________________________________

________________________________________________________________________________

________________________________________________________________________________
                 (SOCIAL SECURITY OR TAX IDENTIFICATION NUMBER)

and be delivered to ____________________________________________________________
                            (PLEASE PRINT OR TYPE NAME AND ADDRESS)

________________________________________________________________________________

and, if such number of Warrants shall not be all the Warrants evidenced by this
Warrant Certificate, that a new Warrant Certificate for the balance of such
Warrants be registered in the name of, and delivered to, the Registered Holder
at the address stated below:


Dated: _____________________________     _______________________________________
                                         (SIGNATURE)

                                         _______________________________________
                                         (ADDRESS)

                                         _______________________________________

                                         _______________________________________
                                         (TAX IDENTIFICATION NUMBER)


                                      A-1-5



                                   ASSIGNMENT

       To Be Executed by the Registered Holder in Order to Assign Warrants

For Value Received,__________________ hereby sell, assign, and transfer unto

________________________________________________________________________________
                     (PLEASE TYPE OR PRINT NAME AND ADDRESS)

________________________________________________________________________________

________________________________________________________________________________

________________________________________________________________________________
                 (SOCIAL SECURITY OR TAX IDENTIFICATION NUMBER)

and be delivered to ____________________________________________________________
                             (PLEASE PRINT OR TYPE NAME AND ADDRESS)

______________________ of the Warrants represented by this Warrant Certificate,
and hereby irrevocably constitute and appoint __________________________________
Attorney to transfer this Warrant Certificate on the books of the Company, with
full power of substitution in the premises.


Dated: _____________________________     _______________________________________
                                         (SIGNATURE)

THE SIGNATURE TO THE ASSIGNMENT OF THE SUBSCRIPTION FORM MUST CORRESPOND TO THE
NAME WRITTEN UPON THE FACE OF THIS WARRANT CERTIFICATE IN EVERY PARTICULAR,
WITHOUT ALTERATION OR ENLARGEMENT OR ANY CHANGE WHATSOEVER, AND MUST BE
GUARANTEED BY A COMMERCIAL BANK OR TRUST COMPANY OR A MEMBER FIRM OF THE
AMERICAN STOCK EXCHANGE, NEW YORK STOCK EXCHANGE, PACIFIC STOCK EXCHANGE OR
CHICAGO STOCK EXCHANGE.


                                      A-1-6



                                                                     EXHIBIT A-2

                        SPECIMEN WARRANT CERTIFICATE FOR
                                PLACEMENT WARRANT

NUMBER                                                                  WARRANTS
__________-

                         (SEE REVERSE SIDE FOR LEGENDS)
         (THIS WARRANT WILL BE VOID IF NOT EXERCISED PRIOR TO 5:00 P.M.
                      NEW YORK CITY TIME, __________, 2011

                   VECTOR INTERSECT SECURITY ACQUISITION CORP.

                                                                           CUSIP

                                     WARRANT

THIS CERTIFIES THAT, for value received

is the registered holder of a Warrant or Warrants expiring ________, 2011 (the
"Warrant") to purchase one fully paid and non-assessable share of Common Stock,
par value $.001 per share ("Shares"), of VECTOR INTERSECT SECURITY ACQUISITION
CORP., a Delaware corporation (the "Company"), for each Warrant evidenced by
this Warrant Certificate. Subject to the conditions set forth herein and in the
Warrant Agreement dated as of ______, 2006 by and between the Company and the
Warrant Agent (the "Warrant Agreement"), the Warrant entitles the holder thereof
to purchase from the Company, commencing on the later of (i) the Company's
completion of a Business Combination with a Target Business or (ii) __________,
2007, and terminating at 5:00 p.m., New York City time on the earlier to occur
of (x) ______, 2011 (the "Expiration Date") or (y) the Redemption Date such
number of Shares of the Company at the price of $5.00 per share, upon surrender
of this Warrant Certificate and payment of the Warrant Price at the office or
agency of the Warrant Agent, American Stock Transfer & Trust Company. Payment of
the Warrant Price may be made, at the option of the holder of the Warrant either
in cash or by certified or official bank check payable to the order of the
Company or on a cashless basis by surrendering Warrants held by the holder to
the Company. The Warrant Agreement provides that upon the occurrence of certain
events the Warrant Price and the number of Warrant Shares purchasable hereunder,
set forth on the face hereof, may, subject to certain conditions, be adjusted.
The term Warrant Price as used in this Warrant Certificate refers to the price
per Share at which Shares may be purchased at the time the Warrant is exercised.
Capitalized terms used in this Warrant Certificate without definition shall have
the respective meanings ascribed to such terms in the Warrant Agreement.

      No fraction of a Share will be issued upon any exercise of a Warrant. If,
upon exercise of a Warrant, a holder would be entitled to receive a fractional
interest in a Share, the Company will, upon exercise, round up to the nearest
whole number the number of shares of common stock to be issued to the warrant
holder.

      Upon any exercise of the Warrant for less than the total number of full
Shares provided for herein, there shall be issued to the registered holder
hereof or his assignee a new Warrant Certificate covering the number of Shares
for which the Warrant has not been exercised.

      Warrant Certificates, when surrendered at the office or agency of the
Warrant Agent by the registered holder hereof in person or by attorney duly
authorized in writing, may be exchanged in the manner and subject to the
limitations provided in the Warrant Agreement, but without payment of any


                                      A-2-1



service charge, for another Warrant Certificate or Warrant Certificates of like
tenor and evidencing in the aggregate a like number of Warrants.

      Upon due presentment for registration of transfer of the Warrant
Certificate at the office or agency of the Warrant Agent, a new Warrant
Certificate or Warrant Certificates of like tenor and evidencing in the
aggregate a like number of Warrants shall be issued to the transferee in
exchange for this Warrant Certificate, subject to the limitations provided in
the Warrant Agreement, without charge except for any applicable tax or other
governmental charge.

      The Company and the Warrant Agent may deem and treat the registered holder
as the absolute owner of this Warrant Certificate (notwithstanding any notation
of ownership or other writing hereon made by anyone), for the purpose of any
exercise hereof, of any distribution to the registered holder, and for all other
purposes, and neither the Company nor the Warrant Agent shall be affected by any
notice to the contrary.

      This Warrant does not entitle the registered holder to any of the rights
of a stockholder of the Company.

      The Company reserves the right to redeem all of the outstanding Warrants
at any time after they become exercisable and prior to the Expiration Date upon
a notice of redemption in writing to the holders of record of the Warrants,
giving no less than 30 days' notice of such redemption if the last sale price of
the Shares has been equal to or greater than $11.50 per Share on each of 20
trading days within a 30 trading day period ending on the third business day
prior to the date on which notice of such redemption is given. The redemption
price of the Warrants is to be $.01 per Warrant. Any Warrant either not
exercised or tendered back to the Company by the Redemption Date shall be
canceled on the books of the Company and have no further value except for the
$.01 redemption price.


                                      A-2-2



      This Warrant Certificate shall not be valid or obligatory for any purpose
until it shall have been countersigned by the Warrant Agent.

                                      VECTOR INTERSECT SECURITY ACQUISITION
                                      CORP.

                                      By: ______________________________________
                                          Title:

[SEAL]

Attest: ____________________________
        Secretary

DATED:

Countersigned:

AMERICAN STOCK TRANSFER &
TRUST COMPANY, as Warrant Agent

By: ________________________________
    Authorized Signatory


                                     A-2-3



         [FORM OF REVERSE OF WARRANT CERTIFICATE FOR PLACEMENT WARRANT]

THE WARRANTS REPRESENTED BY THIS CERTIFICATE WERE INITIALLY ISSUED AS PART OF AN
ISSUANCE OF UNITS, EACH OF WHICH CONSISTS OF ONE SHARE OF COMMON STOCK, PAR
VALUE $.001 ("COMMON STOCK") OF VECTOR INTERSECT SECURITY ACQUISITION CORP. (THE
"COMPANY") AND ONE WARRANT. THE WARRANTS REPRESENTED BY THIS CERTIFICATE WILL
NOT BE SEPARATELY TRANSFERABLE UNTIL THE 20TH TRADING DAY FOLLOWING THE EARLIER
TO OCCUR OF THE EXPIRATION OF THE UNDERWRITERS' OVER-ALLOTMENT OPTION OR THE
EXERCISE IN FULL BY THE UNDERWRITERS OF THE OVER-ALLOTMENT OPTION UNLESS RODMAN
& RENSHAW LLC INFORMS THE COMPANY OF ITS DETERMINATION THAT AN EARLIER SEPARATE
TRADING DATE IS ACCEPTABLE AND THE COMPANY HAS MADE CERTAIN PUBLIC FILINGS WITH
THE SECURITIES AND EXCHANGE COMMISSION (THE "SEC") ON OR PRIOR TO SUCH EARLIER
SEPARATE TRADING DATE.

THE COMMON STOCK OF THE COMPANY FOR WHICH THIS WARRANT IS EXERCISABLE MAY NOT BE
OFFERED OR SOLD IN THE UNITED STATES ABSENT REGISTRATION UNDER THE SECURITIES
ACT OF 1933, AS AMENDED (THE "SECURITIES ACT"), AND ANY APPLICABLE STATE
SECURITIES LAWS OR AN APPLICABLE EXEMPTION FROM SUCH REGISTRATION REQUIREMENTS.
ACCORDINGLY, NO HOLDER SHALL BE ENTITLED TO EXERCISE SUCH HOLDER'S WARRANTS AT
ANY TIME UNLESS, AT THE TIME OF EXERCISE (i) A REGISTRATION STATEMENT UNDER THE
SECURITIES ACT RELATING TO THE SHARES OF COMMON STOCK ISSUABLE UPON THE EXERCISE
OF THIS WARRANT HAS BEEN FILED WITH, AND DECLARED EFFECTIVE BY, THE SEC, AND NO
STOP ORDER SUSPENDING THE EFFECTIVENESS OF SUCH REGISTRATION STATEMENT HAS BEEN
ISSUED BY THE SEC, OR (ii) THE ISSUANCE OF SUCH SHARES IS PERMITTED PURSUANT TO
AN EXEMPTION FROM THE REGISTRATION REQUIREMENTS OF THE SECURITIES ACT AND ANY
APPLICABLE STATE SECURITIES LAWS.

THESE SECURITIES HAVE NOT BEEN REGISTERED UNDER THE SECURITIES ACT OR ANY STATE
SECURITIES LAWS. NEITHER THESE SECURITIES NOR ANY INTEREST OR PARTICIPATION
HEREIN MAY BE REOFFERED, SOLD, ASSIGNED, TRANSFERRED, PLEDGED, ENCUMBERED OR
OTHERWISE DISPOSED OF IN THE ABSENCE OF SUCH REGISTRATION OR UNLESS SUCH
TRANSACTION IS EXEMPT FROM, OR NOT SUBJECT TO, THE REGISTRATION REQUIREMENTS OF
THE SECURITIES ACT.

THE HOLDER OF THIS SECURITY, BY ITS ACCEPTANCE HEREOF AGREES TO OFFER, SELL OR
OTHERWISE TRANSFER THIS SECURITY ONLY (A) TO THE COMPANY, (B) PURSUANT TO A
REGISTRATION STATEMENT WHICH HAS BEEN DECLARED EFFECTIVE UNDER THE SECURITIES
ACT OR (C) PURSUANT TO AN EXEMPTION FROM THE REGISTRATION REQUIREMENTS OF THE
SECURITIES ACT, SUBJECT TO THE COMPANY'S AND THE WARRANT AGENT'S RIGHT PRIOR TO


                                      A-2-4



ANY OFFER, SALE OR TRANSFER (i) PURSUANT TO CLAUSE (C) TO REQUIRE THE DELIVERY
OF AN OPINION OF COUNSEL, CERTIFICATION AND OTHER INFORMATION SATISFACTORY TO
EACH OF THEM THAT THE TRANSFER COMPLIES WITH THE FOREGOING RESTRICTIONS AND (ii)
IN EACH OF THE FOREGOING CASES, TO REQUIRE A CERTIFICATE OF ASSIGNMENT IN THE
FORM APPEARING ON THE OTHER SIDE OF THESE SECURITIES IS COMPLETED AND DELIVERED
BY THE TRANSFEROR TO THE WARRANT AGENT.


                                      A-2-5



                                SUBSCRIPTION FORM
      To Be Executed by the Registered Holder in Order to Exercise Warrants

The undersigned Registered Holder irrevocably elects to exercise ______________
Warrants represented by this Warrant Certificate, and to purchase the shares of
Common Stock issuable upon the exercise of such Warrants, and requests that
Certificates for such shares shall be issued in the name of

________________________________________________________________________________
                     (PLEASE TYPE OR PRINT NAME AND ADDRESS)

________________________________________________________________________________

________________________________________________________________________________

________________________________________________________________________________
                 (SOCIAL SECURITY OR TAX IDENTIFICATION NUMBER)

and be delivered to ____________________________________________________________
                            (PLEASE PRINT OR TYPE NAME AND ADDRESS)

________________________________________________________________________________

and, if such number of Warrants shall not be all the Warrants evidenced by this
Warrant Certificate, that a new Warrant Certificate for the balance of such
Warrants be registered in the name of, and delivered to, the Registered Holder
at the address stated below:


Dated: _____________________________     _______________________________________
                                         (SIGNATURE)

                                         _______________________________________
                                         (ADDRESS)

                                         _______________________________________

                                         _______________________________________
                                         (TAX IDENTIFICATION NUMBER)


                                      A-2-6



                                   ASSIGNMENT

       To Be Executed by the Registered Holder in Order to Assign Warrants

For Value Received,__________________ hereby sell, assign, and transfer unto

________________________________________________________________________________
                     (PLEASE TYPE OR PRINT NAME AND ADDRESS)

________________________________________________________________________________

________________________________________________________________________________

________________________________________________________________________________
                 (SOCIAL SECURITY OR TAX IDENTIFICATION NUMBER)

and be delivered to ____________________________________________________________
                             (PLEASE PRINT OR TYPE NAME AND ADDRESS)

______________________ of the Warrants represented by this Warrant Certificate,
and hereby irrevocably constitute and appoint __________________________________
Attorney to transfer this Warrant Certificate on the books of the Company, with
full power of substitution in the premises.


Dated: _____________________________     _______________________________________
                                         (SIGNATURE)

THE SIGNATURE TO THE ASSIGNMENT OF THE SUBSCRIPTION FORM MUST CORRESPOND TO THE
NAME WRITTEN UPON THE FACE OF THIS WARRANT CERTIFICATE IN EVERY PARTICULAR,
WITHOUT ALTERATION OR ENLARGEMENT OR ANY CHANGE WHATSOEVER, AND MUST BE
GUARANTEED BY A COMMERCIAL BANK OR TRUST COMPANY OR A MEMBER FIRM OF THE
AMERICAN STOCK EXCHANGE, NEW YORK STOCK EXCHANGE, PACIFIC STOCK EXCHANGE OR
CHICAGO STOCK EXCHANGE.


                                      A-2-7



                                                                     EXHIBIT A-3

                        SPECIMEN WARRANT CERTIFICATE FOR
                             REPRESENTATIVE WARRANT

NUMBER                                                                  WARRANTS
__________-

                          (SEE REVERSE SIDE FOR LEGEND)
         (THIS WARRANT WILL BE VOID IF NOT EXERCISED PRIOR TO 5:00 P.M.
                      NEW YORK CITY TIME, __________, 2011

                   VECTOR INTERSECT SECURITY ACQUISITION CORP.

                                                                           CUSIP

                                     WARRANT

THIS CERTIFIES THAT, for value received

is the registered holder of a Warrant or Warrants expiring ________, 2011 (the
"Warrant") to purchase one fully paid and non-assessable share of Common Stock,
par value $.001 per share ("Shares"), of VECTOR INTERSECT SECURITY ACQUISITION
CORP., a Delaware corporation (the "Company"), for each Warrant evidenced by
this Warrant Certificate. Subject to the conditions set forth herein and in the
Warrant Agreement dated as of ______, 2006 by and between the Company and the
Warrant Agent (the "Warrant Agreement"), the Warrant entitles the holder thereof
to purchase from the Company, commencing on the later of (i) the Company's
completion of a Business Combination with a Target Business or (ii) __________,
2007, and terminating at 5:00 p.m., New York City time on the earlier to occur
of (x) ______, 2011 (the "Expiration Date") or (y) the Redemption Date such
number of Shares of the Company at the price of $5.50 per share, upon surrender
of this Warrant Certificate and payment of the Warrant Price at the office or
agency of the Warrant Agent, American Stock Transfer & Trust Company. Payment of
the Warrant Price may be made, at the option of the holder of the Warrant
either, in cash or by certified or official bank check payable to the order of
the Company or on a cashless basis by surrendering Warrants held by the holder
to the Company. The Warrant Agreement provides that upon the occurrence of
certain events the Warrant Price and the number of Warrant Shares purchasable
hereunder, set forth on the face hereof, may, subject to certain conditions, be
adjusted. The term Warrant Price as used in this Warrant Certificate refers to
the price per Share at which Shares may be purchased at the time the Warrant is
exercised. Capitalized terms used in this Warrant Certificate without definition
shall have the respective meanings ascribed to such terms in the Warrant
Agreement.

      No fraction of a Share will be issued upon any exercise of a Warrant. If,
upon exercise of a Warrant, a holder would be entitled to receive a fractional
interest in a Share, the Company will, upon exercise, round up to the nearest
whole number the number of shares of common stock to be issued to the warrant
holder.

      Upon any exercise of the Warrant for less than the total number of full
Shares provided for herein, there shall be issued to the registered holder
hereof or his assignee a new Warrant Certificate covering the number of Shares
for which the Warrant has not been exercised.

      Warrant Certificates, when surrendered at the office or agency of the
Warrant Agent by the registered holder hereof in person or by attorney duly
authorized in writing, may be exchanged in the manner and subject to the
limitations provided in the Warrant Agreement, but without payment of any


                                      A-3-1



service charge, for another Warrant Certificate or Warrant Certificates of like
tenor and evidencing in the aggregate a like number of Warrants.

      Upon due presentment for registration of transfer of the Warrant
Certificate at the office or agency of the Warrant Agent, a new Warrant
Certificate or Warrant Certificates of like tenor and evidencing in the
aggregate a like number of Warrants shall be issued to the transferee in
exchange for this Warrant Certificate, subject to the limitations provided in
the Warrant Agreement, without charge except for any applicable tax or other
governmental charge.

      The Company and the Warrant Agent may deem and treat the registered holder
as the absolute owner of this Warrant Certificate (notwithstanding any notation
of ownership or other writing hereon made by anyone), for the purpose of any
exercise hereof, of any distribution to the registered holder, and for all other
purposes, and neither the Company nor the Warrant Agent shall be affected by any
notice to the contrary.

      This Warrant does not entitle the registered holder to any of the rights
of a stockholder of the Company.

      The Company reserves the right to redeem all of the outstanding Warrants
at any time after they become exercisable and prior to the Expiration Date upon
a notice of redemption in writing to the holders of record of the Warrants,
giving no less than 30 days' notice of such redemption if the last sale price of
the Shares has been equal to or greater than $11.50 per Share on each of 20
trading days within a 30 trading day period ending on the third business day
prior to the date on which notice of such redemption is given. The redemption
price of the Warrants is to be $.01 per Warrant. Any Warrant either not
exercised or tendered back to the Company by the Redemption Date shall be
canceled on the books of the Company and have no further value except for the
$.01 redemption price. Following the date on which notice of a redemption of the
Warrants has been given, payment of the Warrant Price may, at the option of the
holder thereof, also be made on a cashless basis by surrendering Warrants held
by such holder to the Company. Upon such surrender of Warrants to the Company in
payment of the Warrant Price, a holder shall be entitled to receive therefor
that number of Shares otherwise issuable upon exercise of such holder's Warrants
less the number of Shares having a Fair Market Value equal to the aggregate
Warrant Price that would otherwise have been paid by the holder of such
Warrants.


                                      A-3-2



      This Warrant Certificate shall not be valid or obligatory for any purpose
until it shall have been countersigned by the Warrant Agent.

                                      VECTOR INTERSECT SECURITY ACQUISITION
                                      CORP.

                                      By: ______________________________________
                                          Title:

[SEAL]

Attest: ____________________________
        Secretary

DATED:

Countersigned:

AMERICAN STOCK TRANSFER &
TRUST COMPANY, as Warrant Agent

By: ________________________________
    Authorized Signatory


                                      A-3-3



       [FORM OF REVERSE OF WARRANT CERTIFICATE FOR REPRESENTATIVE WARRANT]

THE WARRANTS REPRESENTED BY THIS CERTIFICATE WERE INITIALLY ISSUED AS PART OF AN
ISSUANCE OF UNITS, EACH OF WHICH CONSISTS OF ONE SHARE OF COMMON STOCK, PAR
VALUE $.001 ("COMMON STOCK") OF VECTOR INTERSECT SECURITY ACQUISITION CORP. (THE
"COMPANY") AND ONE WARRANT. THE WARRANTS REPRESENTED BY THIS CERTIFICATE WILL
NOT BE SEPARATELY TRANSFERABLE UNTIL THE 20TH TRADING DAY FOLLOWING THE EARLIER
TO OCCUR OF THE EXPIRATION OF THE UNDERWRITERS' OVER-ALLOTMENT OPTION OR THE
EXERCISE IN FULL BY THE UNDERWRITERS OF THE OVER-ALLOTMENT OPTION UNLESS RODMAN
& RENSHAW LLC INFORMS THE COMPANY OF ITS DETERMINATION THAT AN EARLIER SEPARATE
TRADING DATE IS ACCEPTABLE AND THE COMPANY HAS MADE CERTAIN PUBLIC FILINGS WITH
THE SECURITIES AND EXCHANGE COMMISSION (THE "SEC") ON OR PRIOR TO SUCH EARLIER
SEPARATE TRADING DATE.

THE COMMON STOCK OF THE COMPANY FOR WHICH THIS WARRANT IS EXERCISABLE MAY NOT BE
OFFERED OR SOLD IN THE UNITED STATES ABSENT REGISTRATION UNDER THE SECURITIES
ACT OF 1933, AS AMENDED (THE "SECURITIES ACT"), AND ANY APPLICABLE STATE
SECURITIES LAWS OR AN APPLICABLE EXEMPTION FROM SUCH REGISTRATION REQUIREMENTS.
ACCORDINGLY, NO HOLDER SHALL BE ENTITLED TO EXERCISE SUCH HOLDER'S WARRANTS AT
ANY TIME UNLESS, AT THE TIME OF EXERCISE (i) A REGISTRATION STATEMENT UNDER THE
SECURITIES ACT RELATING TO THE SHARES OF COMMON STOCK ISSUABLE UPON THE EXERCISE
OF THIS WARRANT HAS BEEN FILED WITH, AND DECLARED EFFECTIVE BY, THE SEC, AND NO
STOP ORDER SUSPENDING THE EFFECTIVENESS OF SUCH REGISTRATION STATEMENT HAS BEEN
ISSUED BY THE SEC, OR (ii) THE ISSUANCE OF SUCH SHARES IS PERMITTED PURSUANT TO
AN EXEMPTION FROM THE REGISTRATION REQUIREMENTS OF THE SECURITIES ACT AND ANY
APPLICABLE STATE SECURITIES LAWS.

THE HOLDER OF THIS SECURITY, BY ITS ACCEPTANCE HEREOF AGREES TO OFFER, SELL OR
OTHERWISE TRANSFER THIS SECURITY ONLY (A) TO THE COMPANY, (B) PURSUANT TO A
REGISTRATION STATEMENT WHICH HAS BEEN DECLARED EFFECTIVE UNDER THE SECURITIES
ACT OR (C) PURSUANT TO AN EXEMPTION FROM THE REGISTRATION REQUIREMENTS OF THE
SECURITIES ACT, SUBJECT TO THE COMPANY'S AND THE WARRANT AGENT'S RIGHT PRIOR TO
ANY OFFER, SALE OR TRANSFER (i) PURSUANT TO CLAUSE (C) TO REQUIRE THE DELIVERY
OF AN OPINION OF COUNSEL, CERTIFICATION AND OTHER INFORMATION SATISFACTORY TO
EACH OF THEM THAT THE TRANSFER COMPLIES WITH THE FOREGOING RESTRICTIONS AND (ii)
IN EACH OF THE FOREGOING CASES, TO REQUIRE A CERTIFICATE OF ASSIGNMENT IN THE
FORM APPEARING ON THE OTHER SIDE OF THESE SECURITIES IS COMPLETED AND DELIVERED
BY THE TRANSFEROR TO THE WARRANT AGENT.


                                      A-3-4



                                SUBSCRIPTION FORM
      To Be Executed by the Registered Holder in Order to Exercise Warrants

The undersigned Registered Holder irrevocably elects to exercise ______________
Warrants represented by this Warrant Certificate, and to purchase the shares of
Common Stock issuable upon the exercise of such Warrants, and requests that
Certificates for such shares shall be issued in the name of

________________________________________________________________________________
                     (PLEASE TYPE OR PRINT NAME AND ADDRESS)

________________________________________________________________________________

________________________________________________________________________________

________________________________________________________________________________
                 (SOCIAL SECURITY OR TAX IDENTIFICATION NUMBER)

and be delivered to ____________________________________________________________
                            (PLEASE PRINT OR TYPE NAME AND ADDRESS)

________________________________________________________________________________

and, if such number of Warrants shall not be all the Warrants evidenced by this
Warrant Certificate, that a new Warrant Certificate for the balance of such
Warrants be registered in the name of, and delivered to, the Registered Holder
at the address stated below:


Dated: _____________________________     _______________________________________
                                         (SIGNATURE)

                                         _______________________________________
                                         (ADDRESS)

                                         _______________________________________

                                         _______________________________________
                                         (TAX IDENTIFICATION NUMBER)


                                      A-3-5



                                   ASSIGNMENT

       To Be Executed by the Registered Holder in Order to Assign Warrants

For Value Received,__________________ hereby sell, assign, and transfer unto

________________________________________________________________________________
                     (PLEASE TYPE OR PRINT NAME AND ADDRESS)

________________________________________________________________________________

________________________________________________________________________________

________________________________________________________________________________
                 (SOCIAL SECURITY OR TAX IDENTIFICATION NUMBER)

and be delivered to ____________________________________________________________
                             (PLEASE PRINT OR TYPE NAME AND ADDRESS)

______________________ of the Warrants represented by this Warrant Certificate,
and hereby irrevocably constitute and appoint __________________________________
Attorney to transfer this Warrant Certificate on the books of the Company, with
full power of substitution in the premises.


Dated: _____________________________     _______________________________________
                                         (SIGNATURE)

THE SIGNATURE TO THE ASSIGNMENT OF THE SUBSCRIPTION FORM MUST CORRESPOND TO THE
NAME WRITTEN UPON THE FACE OF THIS WARRANT CERTIFICATE IN EVERY PARTICULAR,
WITHOUT ALTERATION OR ENLARGEMENT OR ANY CHANGE WHATSOEVER, AND MUST BE
GUARANTEED BY A COMMERCIAL BANK OR TRUST COMPANY OR A MEMBER FIRM OF THE
AMERICAN STOCK EXCHANGE, NEW YORK STOCK EXCHANGE, PACIFIC STOCK EXCHANGE OR
CHICAGO STOCK EXCHANGE.


                                      A-3-6