Document:

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EXHIBIT 10.5

                               SECURITY AGREEMENT

         SECURITY AGREEMENT (this "AGREEMENT"), dated June 30, 2004, made by
E-OIR Technologies, Inc., a Virginia corporation (the "GRANTOR"), in favor of
Sellers (as defined below) represented by Joseph R. Moulton, Sr.
("REPRESENTATIVE").

                              W I T N E S S E T H :
                              ---------------------

         WHEREAS, pursuant to the Stock Purchase Agreement dated as of June 30,
2004, between Markland Technologies, Inc., a Florida corporation (the "BUYER"),
and the sellers party thereto (each a "SELLER" and collectively, the "SELLERS")
(the "PURCHASE AGREEMENT"), the Sellers agreed to sell a portion of their shares
of Grantor (the "SOLD SHARES") to Buyer for cash and to allow the Grantor to
redeem the remainder of their shares of Grantor (the "REDEEMED SHARES") by
issuing a promissory note for the value of the respective Redeemed Shares to
each Seller (each a "REDEMPTION NOTE" and collectively, the "REDEMPTION NOTES");
and

         WHEREAS, contemporaneously with the consummation of the transactions
contemplated in the Purchase Agreement and the acceptance of the Redemption
Notes by the Sellers that the Grantor shall have executed and delivered to the
Representative a security agreement providing for the grant to the
Representative for the benefit of the Representative and the other Sellers of a
security interest in all property of the Grantor;

         WHEREAS, pursuant to the Purchase Agreement, Sellers have designated
Moulton as their attorney in fact with authority to, INTER ALIA, enter into this
Agreement in their behalf and stead; and

         WHEREAS, the Grantor at the time of the execution of this Agreement and
the making of the grant hereunder is owned and controlled by Buyer even though
certain of the Sellers remain employees of Grantor pursuant to the Purchase
Agreement; and Buyer has determined that causing Grantor to execute this
Agreement is in Buyer's and Grantor's best interest and necessary for the
consummation of the transactions contemplated by the Purchase Agreement.

         NOW, THEREFORE, in consideration of the premises and the agreements
herein and in order to induce the Sellers to accept the Redemption Notes and
consummate the transactions contemplated in the Purchase Agreement, the Grantor
hereby agrees with the Representative for the benefit of the Representative and
the Sellers as follows:

         Section 1. DEFINITIONS.

         (a) Reference is hereby made to the Purchase Agreement for a statement
of the terms thereof. All terms used in this Agreement and the recitals hereto
which are defined in the Purchase Agreement or in Article 9 of the Uniform
Commercial Code (the "CODE") as in effect from time to time in the Commonwealth
of Virginia and which are not otherwise defined herein shall have the same
meanings herein as set forth therein; PROVIDED that terms used herein which are
defined in the Code as in effect in the Commonwealth of Virginia on the date
hereof shall continue to have the same meaning notwithstanding any replacement
or amendment of such statute except as the Representative may otherwise
determine.
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         (b) The following terms shall have the respective meanings provided for
in the Code: "Accounts", "Cash Proceeds", "Chattel Paper", "Deposit Account",
"Documents", "Equipment", "Fixtures", "General Intangibles", "Goods",
"Instruments", "Inventory", "Investment Property", "Letter-of-Credit Rights",
"Noncash Proceeds", "Payment Intangibles", "Proceeds", "Promissory Notes",
"Record", " "Software", and "Supporting Obligations."

         (c) As used in this Agreement, the following terms shall have the
respective meanings indicated below, such meanings to be applicable equally to
both the singular and plural forms of such terms:

         "COPYRIGHT LICENSES" means all licenses, contracts or other agreements,
whether written or oral, naming the Grantor as licensee or licensor and
providing for the grant of any right to use or sell any works covered by any
copyright.

         "COPYRIGHTS" means all domestic and foreign copyrights, whether
registered or not, including, without limitation, all copyright rights
throughout the universe (whether now or hereafter arising) in any and all media
(whether now or hereafter developed), in and to all original works of authorship
fixed in any tangible medium of expression, acquired or used by the Grantor, all
applications, registrations and recordings thereof (including, without
limitation, applications, registrations and recordings in the United States
Copyright Office or in any similar office or agency of the United States or any
other country or any political subdivision thereof), and all reissues,
divisions, continuations, continuations in part and extensions or renewals
thereof, if any.

         "EVENT OF DEFAULT" means any "Event of Default" under the Redemption
Notes and any breach of any obligation of Grantor under this Agreement.

         "GAAP" means generally accepted accounting principles in effect from
time to time in the United States, applied on a consistent basis.

         "INSOLVENCY PROCEEDING" means any proceeding commenced by or against
any Person under any provision of the United States Bankruptcy Code (11 U.S.C.
ss. 101, ET SEQ.), as amended, and any successor statute or under any other
bankruptcy or insolvency law; assignments for the benefit of creditors; formal
or informal moratoria, compositions, or extensions generally with creditors; or
proceedings seeking reorganization, arrangement, or other similar relief.

         "INTELLECTUAL PROPERTY" means the Copyrights, Trademarks and Patents.

         "IP LICENSES" means the Copyright Licenses, the Trademark Licenses and
the Patent Licenses.

         "LIEN" means any mortgage, deed of trust, pledge, lien (statutory or
otherwise), security interest, charge or other encumbrance or security or
preferential arrangement of any nature, including, without limitation, any
conditional sale or title retention arrangement, any capitalized lease and any
assignment, deposit arrangement or financing lease intended as, or having the
effect of, security.

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         "LOAN DOCUMENTS" means the Redemption Notes, the Pledge Agreement, this
Agreement and any documents executed pursuant to either of the foregoing.

         "MOTOR VEHICLES" means all motor vehicles including, without
limitation, all trucks, trailers, tractors, service vehicles, automobiles and
other mobile equipment.

         "OBLIGATIONS" shall have the meaning set forth in Section 3.

         "PATENT LICENSES" means all licenses, contracts or other agreements,
whether written or oral, naming the Grantor as licensee or licensor and
providing for the grant of any right to manufacture, use or sell any invention
covered by any Patent.

         "PATENTS" means all domestic and foreign letters patent, design
patents, utility patents, industrial designs, inventions, trade secrets, ideas,
concepts, methods, techniques, processes, proprietary information, technology,
know-how, formulae, rights of publicity and other general intangibles of like
nature, now existing or hereafter acquired, all applications, registrations and
recordings thereof (including, without limitation, applications, registrations
and recordings in the United States Patent and Trademark Office, or in any
similar office or agency of the United States or any other country or any
political subdivision thereof), and all reissues, divisions, continuations,
continuations in part and extensions or renewals thereof.

         "PERMITTED INDEBTEDNESS" means:

         (a) any indebtedness owing to the Representative or any other Seller
under this Agreement and the other Loan Documents;

         (b) purchase money indebtedness secured only by the items purchased
with such indebtedness in the ordinary course of business and not exceeding in
the aggregate at any one time outstanding $1,000,000; and

         (c) temporary loans and advances made by Buyer to Grantor in the
ordinary course of business and not exceeding in the aggregate at any one time
outstanding $500,000.

         "PERMITTED LIENS" means:

         (a) Liens created under the Loan Documents;

         (b) Liens junior to, and specifically subordinated in writing to, any
Liens created under the Loan Documents;

         (c) Liens for taxes, assessments and governmental charges;

         (d) Liens imposed by law, such as carriers', warehousemen's,
mechanics', materialmen's and other similar Liens arising (provided they are
subordinate to the Selllers' Liens on Collateral, except as provided by law) in
the ordinary course of business and securing obligations (other than Permitted
Indebtedness) that are not overdue by more than 30 days or are being contested
in good faith and by appropriate proceedings promptly initiated and diligently

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conducted, and a reserve or other appropriate provision, if any, as shall be
required by GAAP shall have been made therefor; and

         (e)     (i) purchase money Liens on property acquired or held by
Grantor in the ordinary course of its business to secure the purchase price of
such property or indebtedness incurred solely for the purpose of financing the
acquisition of such property; or

                  (ii) Liens existing on such property at the time of its
acquisition; PROVIDED, however, that (A) no such Lien shall extend to or cover
any other property of Grantor, (B) the principal amount of the indebtedness
secured by any such Lien shall not exceed the lesser of the fair market value at
the time purchased or the original cost of the property so held or acquired and
(C) the aggregate principal amount of indebtedness secured by any or all such
Liens shall not exceed at any one time outstanding $1,000,000.

         "PERSON" means an individual, corporation, limited liability company,
partnership, association, joint-stock company, trust, unincorporated
organization, joint venture or other enterprise or entity or Governmental
Authority.

         "PLEDGE AGREEMENT" means that certain Pledge Agreement dated as of the
date hereof by and among the Buyer and the Sellers.

         "TRADEMARK LICENSES" means all licenses, contracts or other agreements,
whether written or oral, naming the Grantor as licensor or licensee and
providing for the grant of any right concerning any Trademark.

         "TRADEMARKS" means all domestic and foreign trademarks, service marks,
collective marks, certification marks, trade names, business names, d/b/a's,
Internet domain names, trade styles, designs, logos and other source or business
identifiers and all general intangibles of like nature, now or hereafter owned,
adopted, acquired or used by the Grantor, all applications, registrations and
recordings thereof (including, without limitation, applications, registrations
and recordings in the United States Patent and Trademark Office or in any
similar office or agency of the United States, any state thereof or any other
country or any political subdivision thereof), and all reissues, extensions or
renewals thereof, together with all goodwill of the business symbolized by such
marks and all customer lists, formulae and other Records of the Grantor relating
to the distribution of products and services in connection with which any of
such marks are used.

         Section 2. GRANT OF SECURITY INTEREST. As collateral security for all
of the Obligations, the Grantor hereby collaterally pledges, assigns and grants
to the Representative for the benefit of the Representative and the Sellers, a
continuing security interest in, all personal property of the Grantor, wherever
located and whether now or hereafter existing and whether now owned or hereafter
acquired, of every kind and description, tangible or intangible (the
"COLLATERAL"), including, without limitation, the following:

         (a) all Accounts;

         (b) all Chattel Paper (whether tangible or electronic);

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         (c) all Deposit Accounts, all cash, and all other property from time to
time deposited therein;

         (d) all Documents;

         (e) all Equipment;

         (f) all General Intangibles (including, without limitation, all Payment
Intangibles), including, without limitation, the Government Contracts (to the
maximum extent permitted by law), all rights incident or appurtenant to the
Government Contracts and the rights to receive all proceeds derived from or in
connection with the sale, assignment or transfer of the Government Contracts;

         (g) all Goods;

         (h) all Instruments (including, without limitation, Promissory Notes);

         (i) all Inventory;

         (j) all Investment Property;

         (k) all Copyrights, Patents and Trademarks, and all IP Licenses;

         (l) all Letter-of-Credit Rights;

         (m) all Fixtures;

         (n) all Supporting Obligations;

         (o) all other tangible and intangible personal property of the Grantor
(whether or not subject to the Code), including, without limitation, all bank
and other accounts and all cash and all investments therein, all proceeds,
products, accessions, rents, profits, income, benefits, substitutions and
replacements of and to any of the property of the Grantor described in the
preceding Sections 2(a) through (n) (including, without limitation, any proceeds
of insurance thereon and all causes of action, claims and warranties now or
hereafter held by the Grantor in respect of any of the items listed above), and
all books, correspondence, files and other Records, including, without
limitation, all tapes, disks, cards, Software, data and computer programs in the
possession or under the control of the Grantor or any other Person from time to
time acting for the Grantor that at any time evidence or contain information
relating to any of the property described in the preceding Sections 2(a) through
(n) or are otherwise necessary or helpful in the collection or realization
thereof; and

         (p) all Proceeds, including all Cash Proceeds and Noncash Proceeds, and
products of any and all of the foregoing Collateral; in each case howsoever the
Grantor's interest therein may arise or appear (whether by ownership, security
interest, claim or otherwise). Notwithstanding the foregoing, the Collateral
shall include the Government Contracts only to the extent such assignment or
pledge under this Section 2 would not cause a breach or default under such
Government Contracts or violate any Federal or state law.

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         Section 3. SECURITY FOR OBLIGATIONS. The security interest created
hereby in the Collateral constitutes continuing collateral security for all of
the following obligations, whether now existing or hereafter incurred (the
"OBLIGATIONS"):

         (a) the prompt payment by the Grantor, as and when due and payable
(whether by scheduled maturity, required prepayment, acceleration, demand or
otherwise), of all amounts from time to time owing by it in respect of the
Redemption Notes and the other Loan Documents, including, without limitation,
(i) all principal of and interest on the Redemption Notes (including, without
limitation, all interest that accrues after the commencement of any Insolvency
Proceeding of Grantor, whether or not the payment of such interest is
unenforceable or is not allowable due to the existence of such Insolvency
Proceeding) and (ii) all fees, commissions, charges, expense reimbursements,
indemnifications and all other amounts due or to become due under any Loan
Document; and

         (b) the due performance and observance by the Grantor of all of its
other obligations from time to time existing in respect of the Loan Documents or
the Purchase Agreement.

         Section 4. REPRESENTATIONS AND WARRANTIES. The Grantor represents and
warrants as follows; provided that no representation or warranty under this
Section 4 shall apply (i) to any acts of Grantor or conditions with respect to
Grantor (but not with respect to Buyer) in existence prior to the sale of the
Sold Shares to Buyer or (ii) any acts or conditions covered by the
representations and warranties of Sellers with respect to Grantor in the
Purchase Agreement:

         (a) The Grantor has all requisite power and authority to conduct its
business as now conducted and as presently contemplated and to execute, deliver
and perform this Agreement and each other Loan Document to be executed and
delivered by it pursuant hereto and to consummate the transactions contemplated
hereby and thereby.

         (b) The execution, delivery and performance by the Grantor of this
Agreement and each other Loan Document to which the Grantor is or will be a
party (i) have been duly authorized by all necessary action, (ii) do not and
will not contravene its charter or by-laws, or any applicable laws or any
contractual restriction binding on or otherwise affecting the Grantor or any of
its properties, (iii) do not and will not result in or require the creation of
any Lien (other than pursuant to any Loan Document) upon or with respect to any
of its properties, and (iv) do not and will not result in any default,
noncompliance, suspension, revocation, impairment, forfeiture or nonrenewal of
any permit, license, authorization or approval applicable to it or its
operations or any of its properties.

         (c) This Agreement is, and each other Loan Document to which the
Grantor is or will be a party, when executed and delivered, will be, a legal,
valid and binding obligation of the Grantor, enforceable against the Grantor in
accordance with its terms, except as may be limited by applicable bankruptcy,
insolvency, reorganization, moratorium or other similar laws.

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         (d) There is no pending or, to the knowledge of the Grantor, threatened
action, suit, proceeding or claim affecting the Grantor or its properties before
any court, other governmental authority or any arbitrator, or any order,
judgment or award by any court, governmental authority or arbitrator, that may
materially adversely affect the grant by the Grantor, or the perfection, of the
security interest purported to be created hereby in the Collateral, or the
exercise by the Representative of any of its rights or remedies hereunder.

         (e) All Equipment, Fixtures, Goods and Inventory now existing are, and
all Equipment, Fixtures, Goods and Inventory hereafter existing will be, located
and/or based at the addresses specified therefor in SCHEDULE I hereto (as
amended, supplemented or otherwise modified from time to time in accordance with
the terms hereof).

         (f) The Grantor is and will be at all times the sole and exclusive
owner of, or otherwise have and will have adequate rights in, the Collateral
free and clear of any Lien except for Permitted Liens. No effective financing
statement or other instrument similar in effect covering all or any part of the
Collateral is on file in any recording or filing office except (A) such as may
have been filed in favor of the Representative relating to this Agreement and
(B) such as may have been filed to perfect or protect any Permitted Lien.

         (g) This Agreement creates in favor of the Representative for the
benefit of the Representative and the Sellers a legal, valid and enforceable
security interest in the Collateral, as security for the Obligations. Such
security interests are, or in the case of Collateral in which the Grantor
obtains rights after the date hereof, will be, perfected, first priority
security interests, subject only to the Permitted Liens that, as a matter of
law, would be prior to Liens in favor of the Representative, for the benefit of
the Representative and the Sellers, the recording of such instruments of
assignment, and rules governing the perfection of security interests in
contracts with, or receivables from, the United States Government or
subdivisions and contractors thereof if and to the extent that the
Representative elects to pursue perfection of such security interests. Sellers
may defer the perfection of any security interest in their sole discretion, and
in the event Sellers elect to perfect their interest in United States Government
receivables, it will be solely at Sellers expense.

         Section 5. COVENANTS AS TO THE COLLATERAL. So long as any of the
Obligations shall remain outstanding and the Purchase Agreement and the other
Loan Documents shall not have expired or terminated, unless the Representative
shall otherwise consent in writing:

         (a) FURTHER ASSURANCES. The Grantor will at its expense, at any time
and from time to time, promptly execute and deliver all further instruments and
documents and take all further action that may be necessary or desirable or that
the Representative may reasonably request in order to (i) perfect and protect
the security interest purported to be created hereby; (ii) enable the
Representative to exercise and enforce the Representative's rights and remedies
hereunder in respect of the Collateral; or (iii) otherwise effect the purposes
of this Agreement.

         (b) LOCATION OF EQUIPMENT AND INVENTORY. The Grantor will keep the
Equipment and Inventory (other than used Equipment and Inventory sold in the
ordinary course of business in accordance with Section 5(g) hereof or otherwise
permitted to be sold under the Purchase Agreement) at one or more of the
locations specified therefor in Section 4(e) hereof or, upon not less than
twenty (20) days' prior written notice to the Representative accompanied by a
new SCHEDULE I hereto indicating each new location of the Equipment and
Inventory, at such other locations in the continental United States, as the
Grantor may elect, provided that (i) all action has been taken to grant to the
Representative a perfected, first priority security interest in such Equipment
and Inventory (subject to Permitted Liens), and (ii) the Representative's rights
in such Equipment and Inventory, including, without limitation, the existence,
perfection and priority of the security interest created hereby in such
Equipment and Inventory, are not materially adversely affected thereby.

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         (c) CONDITION OF EQUIPMENT. The Grantor will maintain or cause the
Equipment to be maintained and preserved in good condition, repair and working
order, ordinary wear and tear excepted (other than obsolete or worn-out
Equipment and/or Equipment that is sold in the ordinary course of business as
permitted by this Agreement), and will forthwith, or in the case of any loss or
damage to any Equipment as promptly as practicable after the occurrence thereof,
make or cause to be made all repairs, replacements and other improvements in
connection therewith so that the value and operating efficiency thereof shall be
at all times maintained and preserved. The Grantor will promptly furnish to the
Representative a statement describing in reasonable detail any loss or damage in
excess of $100,000 to any Equipment.

         (d) TAXES, ETC. The Grantor agrees to pay promptly when due all
property and other taxes, assessments and governmental charges or levies imposed
upon, and all claims (including claims for labor, materials and supplies)
against, the Equipment and Inventory, except to the extent the validity thereof
is being contested in good faith by proper proceedings which stay the imposition
of any penalty, fine or Lien resulting from the non-payment thereof and with
respect to which adequate reserves in accordance with GAAP have been set aside
for the payment thereof.

         (e) INSURANCE. The Grantor will, at its own expense, maintain insurance
(including, without limitation, comprehensive general liability, hazard,
property and business interruption insurance) with respect to all of its
properties, including, without limitation, its Equipment and Inventory and all
real properties leased or owned by it in such amounts, against such risks, in
such form and with responsible and reputable insurance companies or associations
as is required by any governmental authority having jurisdiction with respect
thereto or as is carried generally in accordance with sound business practice by
companies in similar businesses similarly situated and in any event, in amount,
adequacy and scope reasonably satisfactory to the Representative. The Grantor
will also, at the request of the Representative, produce evidence of the
insurance coverage required by this Section, with such endorsements as to the
named insureds or loss payees thereunder as the Representative may request
(including listing the Representative as the named insured or loss payee) and
providing that such policy may be terminated or canceled (by the insurer or the
insured thereunder) only upon 30 days' prior written notice to the
Representative and each such named insured or loss payee.

         (f) TRANSFERS AND OTHER LIENS.

                  (i) Except in the ordinary course of business, the Grantor
will not sell, assign (by operation of law or otherwise), lease, license,
exchange or otherwise transfer or dispose of any of the Collateral.

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                  (ii) Except with respect to any Permitted Liens, the Grantor
will not create, suffer to exist or grant any Lien upon or with respect to any
Collateral.

         (g) INTELLECTUAL PROPERTY. The Grantor (either itself or through
licensees) will, and will cause each licensee thereof to, take all action
reasonably necessary to maintain all of the Intellectual Property used in the
business operations of the Grantor in full force and effect, including, without
limitation, using the proper statutory notices and markings where permitted and
appropriate and using the Trademarks on each applicable trademark class of goods
in order to so maintain the Trademarks in force, free from any claim of
abandonment for non-use, and the Grantor will not (nor permit any licensee
thereof to) do any act or knowingly omit to do any act whereby any Intellectual
Property may become invalidated; PROVIDED, HOWEVER, that so long as no Event of
Default has occurred and is continuing, the Grantor shall not have an obligation
to use or to maintain any Intellectual Property (A) that relates solely to any
product or work, that has been, or is in the process of being, discontinued,
abandoned or terminated, (B) that is being replaced with Intellectual Property
substantially similar to the Intellectual Property that may be abandoned or
otherwise become invalid, so long as the failure to use or maintain such
Intellectual Property does not materially adversely affect the validity of such
replacement Intellectual Property and so long as such replacement Intellectual
Property is subject to the Lien created by this Agreement, or (C) that is
substantially the same as another Intellectual Property that is in full force,
so long as the failure to use or maintain such Intellectual Property does not
materially adversely affect the validity of such replacement Intellectual
Property and so long as such other Intellectual Property is subject to the Lien
and security interest created by this Agreement. The Grantor will cause to be
taken all reasonably necessary steps in any proceeding before the United States
Patent and Trademark Office and the United States Copyright Office or any
similar office or agency in any other country or political subdivision thereof
to maintain each registration of the Intellectual Property (other than the
Intellectual Property described in the proviso to the immediately preceding
sentence), including, without limitation, filing of renewals, affidavits of use,
affidavits of incontestability and opposition, interference and cancellation
proceedings and payment of maintenance fees, filing fees, taxes or other
governmental fees. If any Intellectual Property is infringed, misappropriated or
otherwise violated in any material respect by a third party, the Grantor shall
(x) upon obtaining knowledge of such infringement, misappropriation or other
violation, promptly notify the Representative and (y) to the extent the Grantor
shall deem appropriate under the circumstances, promptly sue for infringement,
misappropriation, dilution or other violation, seek injunctive relief where
appropriate and recover any and all damages for such infringement,
misappropriation, or other violation, or take such other actions as the Grantor
shall deem appropriate under the circumstances to protect such Intellectual
Property. Notwithstanding anything herein to the contrary, upon the occurrence
and during the continuance of an Event of Default, the Grantor may not abandon
or otherwise permit any Intellectual Property to become invalid without the
prior written consent of the Representative, and if any Intellectual Property is
infringed, misappropriated or otherwise violated in any material respect by a
third party, the Grantor will take such action as the Representative shall deem
reasonably appropriate under the circumstances to protect such Intellectual
Property.

         (h) CONTROL. The Grantor hereby agrees to take any or all action that
may be necessary and that the Representative may reasonably request in order for
the Representative to obtain control in accordance with Sections 9-104, 9-105,
9-106 and 9-107 of the Code with respect to the following Collateral: (i)
Deposit Accounts, (ii) Electronic Chattel Paper, (iii) Investment Property and

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(iv) Letter-of-Credit Rights; provided that no control agreement shall restrict
Grantor's access to our use of funds unless an event of default has occurred and
is continuing.

         (l) INSPECTION AND REPORTING. Subject to restrictions under applicable
law or regulation, the Grantor shall permit the Representative, or any agents or
representatives thereof or such professionals or other Persons as the
Representative may designate (i) to examine and inspect the books and records of
the Grantor and take copies and extracts therefrom, (ii) to visit and inspect
the Collateral, (iii) to verify contracts, materials, leases, notes, Accounts,
Inventory and other assets of the Grantor from time to time and (iv) to conduct
audits, physical counts, appraisals and/or valuations or examinations at the
locations of the Grantor; provided that the Grantor shall not be obligated while
no Event of Default has occurred or is ongoing to permit any of the foregoing
(A) outside of normal business hours or (B) more than four times in any
twelve-month period.

         (m) SHARES OF GRANTOR. Grantor shall not permit any of its capital
stock (i) to be dealt in or traded on securities exchanges or in securities
markets or (ii) become an investment company security within the meaning of
Section 8-103 of any relevant Uniform Commercial Code.

         Section 6. ADDITIONAL PROVISIONS CONCERNING THE COLLATERAL.

         (a) The Grantor hereby (i) authorizes the Representative to file, one
or more financing or continuation statements, and amendments thereto, relating
to the Collateral (including, without limitation, any such financing statements
that indicate the Collateral as "all assets" or words of similar import) and
(ii) ratifies such authorization to the extent that the Representative has filed
any such financing or continuation statements, or amendments thereto, prior to
the date hereof. A photocopy or other reproduction of this Agreement or any
financing statement covering the Collateral or any part thereof shall be
sufficient as a financing statement where permitted by law.

         (b) The Grantor hereby irrevocably appoints the Representative as its
attorney-in-fact and proxy, with full authority in the place and stead of the
Grantor and in the name of the Grantor or otherwise, from time to time upon the
occurrence and during the continuance of an Event of Default, in the
Representative's discretion, to take any action and to execute any instrument
which the Representative may deem necessary or advisable to accomplish the
purposes of this Agreement (subject to the rights of the Grantor under Section 5
hereof), including, without limitation, (i) to obtain and adjust insurance
required to be paid to the Representative pursuant to Section 5(e) hereof, (ii)
to ask, demand, collect, sue for, recover, compound, receive and give
acquittance and receipts for moneys due and to become due under or in respect of
any Collateral, (iii) to receive, endorse, and collect any drafts or other
instruments, documents and chattel paper in connection with clause (i) or (ii)
above, (iv) to file any claims or take any action or institute any proceedings
which the Representative may deem necessary or desirable for the collection of
any Collateral or otherwise to enforce the rights of the Representative and the
Sellers with respect to any Collateral and (v) to execute assignments, licenses
and other documents to enforce the rights of the Representative and the Sellers

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with respect to any Collateral. This power is coupled with an interest and is
irrevocable until all of the Obligations are paid in full.

         (c) If the Grantor fails to perform any agreement contained herein
which materially impairs the Collateral or any security interest granted under
this Agreement, the Representative may itself perform, or cause performance of,
such agreement or obligation, in the name of the Grantor or the Representative,
and the expenses of the Representative incurred in connection therewith shall be
payable by the Grantor pursuant to Section 8 hereof and shall be secured by the
Collateral.

         (d) The powers conferred on the Representative hereunder are solely to
protect its interest in the Collateral and shall not impose any duty upon it to
exercise any such powers. Except for the safe custody of any Collateral in its
possession and the accounting for moneys actually received by it hereunder, the
Representative, as Representative, shall have no duty as to any Collateral or as
to the taking of any necessary steps to preserve rights against prior parties or
any other rights pertaining to any Collateral.

         (e) Anything herein to the contrary notwithstanding (i) the Grantor
shall remain liable under the IP Licenses and otherwise with respect to any of
the Collateral to the extent set forth therein to perform all of its obligations
thereunder to the same extent as if this Agreement had not been executed, (ii)
the exercise by the Representative of any of its rights hereunder shall not
release the Grantor from any of its obligations under the IP Licenses or
otherwise in respect of the Collateral, and (iii) the Representative shall not
have any obligation or liability by reason of this Agreement under the IP
Licenses or with respect to any of the other Collateral, nor shall the
Representative be obligated to perform any of the obligations or duties of the
Grantor thereunder or to take any action to collect or enforce any claim for
payment assigned hereunder.

         Section 7. REMEDIES UPON DEFAULT. If any Event of Default shall have
occurred and be continuing:

         (a) The Representative may exercise in respect of the Collateral, in
addition to any other rights and remedies provided for herein or otherwise
available to it, all of the rights and remedies of a secured party upon default
under the Code (whether or not the Code applies to the affected Collateral), and
also may (i) take absolute control of the Collateral, including, without
limitation, transfer into the Representative's name or into the name of its
nominee or nominees (to the extent the Representative has not theretofore done
so) and thereafter receive, for the benefit of the Sellers, all payments made
thereon, give all consents, waivers and ratifications in respect thereof and
otherwise act with respect thereto as though it were the outright owner thereof,
(ii) require the Grantor to, and the Grantor hereby agrees that it will at its
expense and upon request of the Representative forthwith, assemble all or part
of the Collateral as directed by the Representative and make it available to the
Representative at a place or places to be designated by the Representative that
is reasonably convenient to both parties, and the Representative may enter into
and occupy any premises owned or leased by the Grantor where the Collateral or
any part thereof is located or assembled for a reasonable period in order to
effectuate the Representative's rights and remedies hereunder or under law,
without obligation to the Grantor in respect of such occupation, and (iii)

                                       11
<PAGE>

without notice except as specified below and without any obligation to prepare
or process the Collateral for sale, (A) sell the Collateral or any part thereof
in one or more parcels at public or private sale, at any of the Representative's
offices or elsewhere, for cash, on credit or for future delivery, and at such
price or prices and upon such other commercially reasonable terms as the
Representative may deem appropriate and/or (B) lease, license or dispose of the
Collateral or any part thereof upon such commercially reasonable terms as the
Representative may deem appropriate. The Grantor agrees that, to the extent
notice of sale or any other disposition of the Collateral shall be required by
law, at least ten (10) days' notice to the Grantor of the time and place of any
public sale or the time after which any private sale or other disposition of the
Collateral is to be made shall constitute reasonable notification. The
Representative shall not be obligated to make any sale or other disposition of
Collateral regardless of notice of sale having been given. The Representative
may adjourn any public or private sale from time to time by announcement at the
time and place fixed therefor, and such sale may, without further notice, be
made at the time and place to which it was so adjourned. The Grantor hereby
waives any claims against the Representative and the Sellers arising solely by
reason of the fact that the price at which the Collateral may have been sold at
a private sale was less than the price which might have been obtained at a
public sale or was less than the aggregate amount of the Obligations, even if
the Representative accepts the first offer received and does not offer the
Collateral to more than one offeree; and the Grantor also hereby waives all
rights that the Grantor may have to require that all or any part of the
Collateral be marshalled upon any sale (public or private) thereof. The Grantor
hereby acknowledges that (x) any such sale of the Collateral by the
Representative shall be made without warranty, (y) the Representative may
specifically disclaim any warranties of title, possession, quiet enjoyment or
the like, and (z) such actions set forth in clauses (x) and (y) above shall not
adversely affect the commercial reasonableness of any such sale of the
Collateral. In addition to the foregoing, upon written notice to the Grantor
from the Representative, the Grantor shall cease any use of the Intellectual
Property or any trademark, patent or copyright similar thereto for any purpose
described in such notice.

         (b) Any cash held by the Representative as Collateral and all Cash
Proceeds received by the Representative in respect of any sale of or collection
from, or other realization upon, all or any part of the Collateral may, in the
discretion of the Representative, be held by the Representative as collateral
for, and/or then or at any time thereafter applied (after payment of any amounts
payable to the Representative pursuant to Section 8 hereof) in whole or in part
by the Representative against, all or any part of the Obligations in such order
as the Representative shall elect, consistent with the provisions of the
Redemption Notes. Any surplus of such cash or Cash Proceeds held by the
Representative and remaining after payment in full of all of the Obligations and
termination of the Loan Documents shall be paid over to whosoever shall be
lawfully entitled to receive the same or as a court of competent jurisdiction
shall direct.

         (c) In the event that the proceeds of any such sale, collection or
realization are insufficient to pay all amounts to which the Representative and
the Sellers are legally entitled, the Grantor shall be liable for the
deficiency, together with interest thereon at the highest rate specified in any
applicable Loan Document or such other rate as shall be fixed by applicable law,
together with the costs of collection and the reasonable fees, costs, expenses
and other client charges of any attorneys employed by the Representative to
collect such deficiency.

                                       12
<PAGE>

         (d) The Grantor hereby acknowledges that if the Representative complies
with any applicable state or federal law requirements in connection with a
disposition of the Collateral, such compliance will not adversely affect the
commercial reasonableness of any sale or other disposition of the Collateral.

         (e) The Representative shall not be required to marshal any present or
future collateral security (including, but not limited to, this Agreement and
the Collateral) for, or other assurances of payment of, the Obligations or any
of them or to resort to such collateral security or other assurances of payment
in any particular order, and all of the Representative's rights hereunder and in
respect of such collateral security and other assurances of payment shall be
cumulative and in addition to all other rights, however existing or arising. To
the extent that the Grantor lawfully may, the Grantor hereby agrees that it will
not invoke any law relating to the marshalling of collateral which might cause
delay in or impede the enforcement of the Representative's rights under this
Agreement or under any other instrument creating or evidencing any of the
Obligations or under which any of the Obligations is outstanding or by which any
of the Obligations is secured or payment thereof is otherwise assured, and, to
the extent that it lawfully may, the Grantor hereby irrevocably waives the
benefits of all such laws.

         Section 8. INDEMNITY AND EXPENSES.

         (a) The Grantor agrees to defend, protect, indemnify and hold harmless
the Representative and each Seller (and all of their respective attorneys,
consultants and agents) from and against any and all claims, damages, losses,
liabilities, obligations, penalties, fees, costs and expenses (including,
without limitation, reasonable legal fees and other client charges and
disbursements of the Representative's and each Seller's counsel) to the extent
that they arise out of or otherwise result from this Agreement (including,
without limitation, enforcement of this Agreement), except for expenses
expressly assumed by Sellers pursuant to this Agreement ("Sellers' Expenses"),
and claims, losses or liabilities resulting solely and directly from the
Representative's or any other Seller's breach of this agreement, gross
negligence or willful misconduct, as determined by a final judgment of a court
of competent jurisdiction.

         (b) The Grantor agrees to pay to the Representative upon demand the
amount of any and all costs and expenses, including the reasonable fees, costs,
expenses and disbursements of counsel for the Representative and of any experts
and agents (including, without limitation, any collateral trustee which may act
as agent of the Representative), other than Sellers' Expenses, which the
Representative may incur in connection with (i) the preparation, negotiation,
execution, delivery, recordation, administration, amendment, waiver or other
modification or termination of this Agreement, (ii) the custody, preservation,
use or operation of, or the sale of, collection from, or other realization upon,
any Collateral, (iii) the exercise or enforcement of any of the rights of the
Representative hereunder, or (iv) the failure by the Grantor to perform or
observe any of the provisions hereof.

         Section 9. NOTICES, ETC. All notices and other communications provided
for hereunder shall be in writing and shall be mailed (by certified mail,
postage prepaid and return receipt requested), telecopied or delivered, if to
the Grantor at the address provided in the Purchase Agreement, with a copy to
Buyer at the address provided in the Purchase Agreement and if to the
Representative at the address provided in the Purchase Agreement; or as to any

                                       13
<PAGE>

such Person, at such other address as shall be designated by such Person in a
written notice to such other Person complying as to delivery with the terms of
this Section 9. All such notices and other communications shall be effective (a)
if mailed (by certified mail, postage prepaid and return receipt requested),
when received or three (3) days after deposited in the mails, whichever occurs
first, (b) if telecopied, when transmitted and confirmation is received or (c)
if delivered, upon delivery.

         Section 10. SECURITY INTEREST ABSOLUTE. All rights of the
Representative and the Sellers, all Liens and all obligations of the Grantor
hereunder shall be absolute and unconditional irrespective of (a) any lack of
validity or enforceability of the Purchase Agreement, any Loan Document or any
other agreement or instrument relating thereto, (b) any change in the time,
manner or place of payment of, or in any other term in respect of, all or any of
the Obligations, or any other amendment or waiver of or consent to any departure
from the Redemption Notes, (c) any exchange or release of, or non-perfection of
any Lien on any Collateral, or any release or amendment or waiver of or consent
to departure from all or any of the Obligations, or (d) any other circumstance
that might otherwise constitute a defense available to, or a discharge of, the
Grantor in respect of the Obligations. All authorizations and agencies contained
herein with respect to any of the Collateral are irrevocable and powers coupled
with an interest.

         Section 11. MISCELLANEOUS.

         (a) No amendment of any provision of this Agreement shall be effective
unless it is in writing and both signed by the Grantor and the Representative
and approved by the board of directors of Grantor. No waiver of any provision of
this Agreement, and no consent to any departure by the Grantor therefrom, shall
be effective unless it is in writing and signed by the Representative, and then
such waiver or consent shall be effective only in the specific instance and for
the specific purpose for which given.

         (b) No failure on the part of the Representative or the Sellers to
exercise, and no delay in exercising, any right hereunder or under any Loan
Documents shall operate as a waiver thereof; nor shall any single or partial
exercise of any such right preclude any other or further exercise thereof or the
exercise of any other right. The rights and remedies of the Representative and
the Sellers provided herein and in the other Loan Documents are cumulative and
are in addition to, and not exclusive of, any rights or remedies provided by
law. The rights of the Representative and the Sellers under any Loan Documents
against any party thereto are not conditional or contingent on any attempt by
such Person to exercise any of its rights under any other Loan Document against
such party or against any other Person, including but not limited to, the
Grantor.

         (c) Any provision of this Agreement which is prohibited or
unenforceable in any jurisdiction shall, as to such jurisdiction, be ineffective
to the extent of such prohibition or unenforceability without invalidating the
remaining portions hereof or thereof or affecting the validity or enforceability
of such provision in any other jurisdiction.

         (d) This Agreement shall create a continuing security interest in the
Collateral and shall (i) remain in full force and effect the payment in full of
the Obligations, and (ii) be binding on the Grantor and all other Persons who

                                       14
<PAGE>

become bound as debtor to this Agreement in accordance with Section 9-203(d) of
the Code and shall inure, together with all rights and remedies of the
Representative and the Sellers hereunder, to the benefit of the Representative
and the Sellers and their respective permitted successors, transferees and
assigns. Without limiting the generality of clause (ii) of the immediately
preceding sentence, without notice to the Grantor, the Sellers, but not the
Representative, may assign or otherwise transfer their rights and obligations
under this Agreement and any other Loan Document, to any other Person and such
other Person shall thereupon become vested with all of the benefits in respect
thereof granted to the Sellers herein or otherwise. The Representative may only
assign or otherwise transfer his rights and obligations under this Agreement
with the written consent of the Grantor and the Buyer; provided that, upon the
death, incapacity or judicially determined incompetence of the Representative,
the Sellers (by a vote relative to the outstanding amounts of the principal
balance of the Redemption Notes held by each) shall designate a new Person (who
shall be reasonably acceptable to Grantor) to succeed to the rights and
obligations of the Representative hereunder. Designations of Representative(s)
shall be irrevocable unless the Representative resigns or requires replacement,
each pursuant to the preceding sentence. Upon any such assignment, transfer or
designation, all references in this Agreement to the Representative or any such
Seller shall mean the assignee or transferee of the Representative or such
Seller or the designee or the Sellers. None of the rights or obligations of the
Grantor hereunder may be assigned or otherwise transferred without the prior
written consent of the Representative, and any such assignment or transfer shall
be null and void.

         (e) Upon the satisfaction in full of the Obligations and the
termination of the Redemption Notes, (i) this Agreement and the security
interests created hereby shall terminate and all rights to the Collateral shall
revert to the Grantor and (ii) the Representative will, upon the Grantor's
request and at the Grantor's expense, without any representation, warranty or
recourse whatsoever, (A) return to the Grantor such of the Collateral as shall
not have been sold or otherwise disposed of or applied pursuant to the terms
hereof and (B) execute and deliver to the Grantor such documents as the Grantor
shall reasonably request to evidence such termination.

         (f) THIS AGREEMENT SHALL BE GOVERNED BY, CONSTRUED AND INTERPRETED IN
ACCORDANCE WITH THE LAWS OF THE COMMONWEALTH OF VIRGINIA, EXCEPT AS REQUIRED BY
MANDATORY PROVISIONS OF LAW AND EXCEPT TO THE EXTENT THAT THE VALIDITY AND
PERFECTION OR THE PERFECTION AND THE EFFECT OF PERFECTION OR NON-PERFECTION OF
THE SECURITY INTEREST CREATED HEREBY, OR REMEDIES HEREUNDER, IN RESPECT OF ANY
PARTICULAR COLLATERAL ARE GOVERNED BY THE LAW OF A JURISDICTION OTHER THAN THE
COMMONWEALTH OF VIRGINIA.

         (g) The Grantor irrevocably consents to the service of process of any
of the aforesaid courts in any such action, suit or proceeding by the mailing of
copies thereof by registered or certified mail (or any substantially similar
form of mail), postage prepaid, to the Grantor and to the Buyer at the addresses
provided herein, such service to become effective ten (10) days after such
mailing.

                                       15
<PAGE>

         (h) Nothing contained herein shall affect the right of the
Representative to serve process in any other manner permitted by law or commence
legal proceedings or otherwise proceed against the Grantor or any property of
the Grantor in any other jurisdiction.

         (i) The Grantor and the Representative irrevocably and unconditionally
waive any right each may have to claim or recover in any legal action, suit or
proceeding referred to in this Section any special, exemplary, punitive or
consequential damages.

         (j) EACH GRANTOR AND (BY ITS ACCEPTANCE OF THE BENEFITS OF THIS
AGREEMENT) THE REPRESENTATIVE WAIVES ANY RIGHT IT MAY HAVE TO TRIAL BY JURY IN
RESPECT OF ANY LITIGATION BASED ON, ARISING OUT OF, UNDER OR IN CONNECTION WITH
THIS AGREEMENT OR ANY OTHER LOAN DOCUMENT, OR ANY COURSE OF CONDUCT, COURSE OF
DEALING, VERBAL OR WRITTEN STATEMENT OR OTHER ACTION OF THE PARTIES HERETO.

         (k) Section headings herein are included for convenience of reference
only and shall not constitute a part of this Agreement for any other purpose.

         (l) This Agreement may be executed in any number of counterparts and by
different parties hereto in separate counterparts, each of which shall be deemed
to be an original, but all of which taken together constitute one in the same
Agreement. Delivery of an executed counterpart of this Agreement by facsimile
shall be equally effective as delivery of an original executed counterpart.

                [REMAINDER OF THIS PAGE INTENTIONALLY LEFT BLANK]

                                       16
<PAGE>

                      SIGNATURE PAGE TO SECURITY AGREEMENT
                      ------------------------------------

         IN WITNESS WHEREOF, the Grantor has caused this Agreement to be
executed and delivered by its officer thereunto duly authorized as of the date
first above written.

GRANTOR:                             E-OIR TECHNOLOGIES, INC.
--------

                                     By: _____________________________________
                                         Name:
                                         Title:

ACCEPTED AND AGREED:
--------------------

SELLERS:

By: _____________________________________
     JOSEPH R. MOULTON, AS REPRESENTATIVE

                                  Sched. III-1
<PAGE>

                                   SCHEDULE I

                              LOCATIONS OF GRANTOR

LOCATION                              Description of Location (State if Location
--------                              (i) contains Equipment, Fixtures,
                                      Goods or Inventory,
                                      (ii) is chief place of business and
                                      chief executive office, or
                                      (iii) contains Records concerning Accounts
                                      and originals of Chattel Paper)<PAGE>
EXHIBIT 10.6

                          PLEDGE AND SECURITY AGREEMENT

         PLEDGE AND SECURITY AGREEMENT (this "AGREEMENT"), dated June 30, 2004,
made by Markland Technologies, Inc., a Florida corporation (the "PLEDGOR"), in
favor of Joseph R. Moulton, Sr., an individual, for himself and as agent for the
Sellers (as defined below) other than himself (the "REPRESENTATIVE").

                              W I T N E S S E T H:
                              --------------------

         WHEREAS, pursuant to the Stock Purchase Agreement dated as of June 30,
2004, between Pledgor and the sellers party thereto (each a "SELLER" and
collectively, the "SELLERS") (the "PURCHASE AGREEMENT"), the Sellers agreed to
sell 12,000 shares (the "SOLD SHARES") of E-OIR Technologies, Inc., a Virginia
corporation ("E-OIR"), to Pledgor for cash and to allow E-OIR to redeem the
remainder of the Sellers' shares of E-OIR (the "REDEEMED SHARES") by issuing a
promissory note for the value of the respective Redeemed Shares to each Seller
(together, the "REDEMPTION NOTES"); and

         WHEREAS, it is a condition to the consummation of the transactions
contemplated in the Purchase Agreement and the acceptance of the Redemption
Notes by the Sellers that the Pledgor shall have executed and delivered to the
Representative a pledge and security agreement pledging the Sold Shares to the
Representative for the benefit of the Representative and the other Sellers as
security for the repayment by E-OIR of the Redemption Notes; and

         WHEREAS, after the redemption of the Redeemed Shares by E-OIR prior to
the execution hereof, the Sold Shares represent all of the issued and
outstanding stock of E-OIR and such shares are held by the Pledgor; and

         WHEREAS, E-OIR at the time of the execution of this Agreement is owned
and controlled by Pledgor even though certain of the Sellers remain employees of
E-OIR pursuant to the Purchase Agreement; and Pledgor has determined that
executing this Agreement and pledging the Sold Shares is in Pledgor's and
E-OIR's best interest and necessary for the consummation of the transactions
contemplated by the Purchase Agreement.

         NOW, THEREFORE, in consideration of the premises and the agreements
herein and in order to induce the Sellers to accept the Redemption Notes and
consummate the transactions contemplated in the Purchase Agreement, the Pledgor
hereby agrees with the Representative for the benefit of the Representative and
the Sellers as follows:

         1. PLEDGE. Pledgor grants to the Representative a first priority
security interest in, and pledges, the Sold Shares, to secure Pledgor's
obligations under (i) the Redemption Notes, (ii) that certain Security Agreement
dated as of the date hereof by and between E-OIR and the Representative, on its
behalf and on behalf of the Sellers (the "SECURITY AGREEMENT"), and (iii) this
Agreement (together, the "OBLIGATIONS").

<PAGE>

         2. VOTING; DIVIDENDS AND RECAPITALIZATION. So long as no default
hereunder or any Event of Default (as defined in the Redemption Notes, an "EVENT
OF DEFAULT") has taken place or is continuing, Pledgor may vote the Sold Shares
pledged hereunder. In the event that, during the term of this Agreement, any
share dividend, stock split, reclassification, readjustment, or other changes
are declared or made in the capital structure of E-OIR, the shares of which are
pledged hereby, all new, substituted, and additional shares or other securities
issued by reason of any such change shall be held by the Representative under
the terms of this Agreement in the same manner as the Sold Shares originally
pledged hereunder. In the event that, during the term of this Agreement, Pledgor
transfers all or part of its Sold Shares, the transferee of such Sold Shares
shall take such shares subject to the security interest created hereunder.
Pledgor shall provide the Representative with reasonable notice that such
transfer has occurred.

         3. DEFAULT. In the event that Pledgor defaults in the payment or
performance of any Obligation secured by and under this Agreement, the
Representative shall have all of the rights and remedies provided by the Uniform
Commercial Code in force in the Commonwealth of Virginia at the date of this
Agreement, and the Representative shall have full power and authority to sell,
assign, transfer, and deliver the collateral at public or private sale or sales
at the option of the Representative upon notice to Pledgor. The Representative
may purchase at any public sale all or any part or parts of the Sold Shares at
any such sale. After deducting all reasonable costs, expenses, and fees incurred
by the Representative in making such sale or sales, the net proceeds therefrom
shall be applied in the following priority: first, to the payment of any or all
Obligations of Pledgor and the surplus, if any, shall be promptly paid to
Pledgor within ten (10) business days from the date of the sale.

         4. STOCK AND BOND POWERS. Any certificate(s) evidencing the Sold Shares
in existence has been, or will promptly be upon issuance, delivered, duly
endorsed in blank or accompanied by an executed stock power, by Pledgor to the
Representative. Pledgor further agrees to and shall execute any other documents
reasonably requested by the Representative at any time including, for the
purpose of effecting the sale of the Sold Shares, upon and during the
continuations of any default hereunder of Pledgor or an Event of Default.

         5. TERMINATION. Upon payment in full of the Redemption Notes and any
other Obligations, this Agreement and all security interests granted hereunder
shall be deemed to be automatically terminated. E-OIR and Pledgor shall be
permitted to cancel and/or reissue any stock certificates delivered to the
Representative, and Pledgor may file any UCC termination statements or similar
documents to reflect the termination of this Agreement. The Representative
further agrees to and shall execute any other documents reasonably requested by
Pledgor upon termination of this Agreement for the purpose of releasing the
Representative's interest in the Sold Shares.

         6. REMEDIES CUMULATIVE. All of the remedies of the Representative
hereunder either provided for in this Agreement or covered by applicable laws,
and all other remedies of the Representative with respect to the Obligations
(including, without limitation, under the Redemption Notes, the Security
Agreement or any applicable law) shall be cumulative and not alternative, and
they may be enforced successively or concurrently and without derogation of any

                                       2
<PAGE>

other. The Obligations of Pledgor herein contained may be specifically enforced
in equity or may be enforced without recourse to any court.

         7. BINDING EFFECT - CHOICE OF LAW. This Agreement is intended for and
shall inure to the benefit of the Representative, the Sellers and each and every
other party or person who is or shall from time to time become the owner, part
owner, or holder of the Obligations hereby secured, and each and every reference
herein to the Representative shall also include and refer to each and every
successor or assignee of, or loan participant with, the Representative, at any
time holding or owning any part of or any interest in any part of the
Obligations hereby secured. Pledgor expressly waives notice of transfer or
assignment of the Obligations, or any part thereof, or the rights of the
Representative thereunder. This Agreement shall be construed in accordance with
and governed by the laws of the Commonwealth of Virginia.

         8. CAPTIONS. Captions in this Agreement are for the assistance of the
reader and are not intended to modify the text of the various provisions.

                            [SIGNATURE PAGE FOLLOWS]

                                       3
<PAGE>

               SIGNATURE PAGE TO THE PLEDGE AND SECURITY AGREEMENT
               ---------------------------------------------------

         IN WITNESS WHEREOF, the undersigned has caused this Agreement to be
executed on the date first written above.

                                             PLEDGOR:
                                             --------

                                             Markland Technologies, Inc.

                                             By: ______________________________
                                                 Name:
                                                 Title:

                                       4

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