Document:

Exhibit 10(aaa)

                               Retainer Agreement

This will certify that SIGA Technologies, Inc. ("SIGA") has agreed to engage
Bridge Ventures, Inc. ("Bridge") as its strategic planner. This is a personal
services Agreement and cannot be assigned or delegated, by either party, without
the prior written consent of the party to be charged with such assignment or
delegation, and any unauthorized assignments shall be null and void without
effect and shall immediately terminate this Agreement.

Payment

In exchange for its services as Strategic Planner, SIGA shall grant Bridge
warrants to purchase 250,000 shares of its common stock, .0001 par value. The
warrants may be exercised for a period of 60 months from their date of grant and
they will have an exercise price of $2.00 per share. The warrants will have a
cashless exercise provision.

Term

This agreement shall commence on November 1, 2002 and shall continue for a
period of 60 months.

                                 LEGAL RECOURSE

Any dispute(s) or claim(s) with respect to this Agreement or the performance of
any obligations there under, shall be settled by arbitration and commenced and
adjudicated under the rules then obtaining of the American Arbitration
Association. The arbitration shall be conducted before a panel of three (3)
arbitrators, one selected by each of the parties and the third selected by the
other two. The arbitrators in any arbitration proceeding to enforce this
Agreement shall allocate the reasonable attorney's fees, among one or both
parties in such proportion as the arbitrators shall determine represents each
parties liability hereunder. The decision of the arbitrator shall be final and
binding and may be entered into any court having proper jurisdiction to obtain a
judgement for the prevailing party. In any proceeding to enforce an arbitration
award, the prevailing party in such proceeding shall have the right to collect
from the non-prevailing party, it's reasonable fees and expenses incurred in
enforcing the arbitration award (including, without limitation, reasonable
attorney's fee).

CONFIDENTIALITY

      1.    Bridge shall keep in strictest confidence, all privileged
            information relating to this Agreement which may be acquired in
            connection with or as a result of this Agreement. During the
            existence of this project, and for a period of three (3) years
            thereafter, Bridge shall not communicate, divulge, disclose,
            disseminate or use any of such privileged information which has been
            designated SIGA as proprietary property, without prior written
            consent of SIGA.

            Before any of Bridge officers, directors, consultants and employees
            who are allowed access to any information which is confidential
            under the terms and provisions thereof, shall be permitted to view
            such information, Bridge shall require such officers, directors,
            consultants and employees to sign non-disclosure agreements which
            embody the provisions of this paragraph.

      2.    Proprietary information does not include information in the public
            domain through no breach of this Agreement by the other party, or
            which the revealing party has obtained through a third party through
            no breach of this Agreement.

<PAGE>

      3.    Bridge shall keep any confidential information it receives from SIGA
            in confidence in accordance with the terms of this agreement.

      4.    Bridge shall only use Confidential Information for the purposes of
            performing its obligations under this Agreement.

      5.    Bridge shall use reasonable care to prevent use of disclosure of the
            Confidential Information, and no less stringent degree of care to
            avoid disclosure or use of such Confidential that it employs with
            respect to its own Confidential Information which it does not wish
            to be disseminated, published or disclosed.

      6.    Confidential information shall not include any information which

                  (a)   is already known to Bridge at the time of disclosure
                        through lawful channels of communication; or

                  (b)   is or became publicly known through no wrongful act of
                        Bridge, or

                  (c)   is rightfully received from a third party without
                        similar restrictions and without breach of this
                        Agreement; or

                  (d)   is approved for release by written authorization from
                        SIGA.

      7.    In the event that Bridge becomes legally compelled, for any reason
            whatsoever, to disclose any of the Confidential Information, Bridge
            shall provide SIGA with prompt prior written notice at any such
            requirement Bridge agrees to furnish only that portion of
            Confidential Information which it is required to.

      8.    To the extent SIGA discloses Confidential Information to Bridge,
            SIGA agrees to reduce the oral Confidential Information to writing
            and deliver same to Bridge within fifteen (15) days of such oral
            disclosure, referencing the place and date of oral disclosure was
            made, and including therein a detailed description of the
            Confidential Information actually disclosed.

      9.    All copies of Confidential Information delivered by SIGA to Bridge
            pursuant to this Agreement whether imprinted, magnetic, optical or
            other tangible or mechanically reproducible form, shall remain the
            property of SIGA, and all such Confidential Information together
            with any copies thereof, shall be promptly returned to SIGA upon
            written request, or destroyed at SIGA's option following the
            termination or expiration of this Agreement.

All notices, requests, demands, and other communications under this Agreement
shall be in writing and shall be deemed to have been duly given on the date of
service if served personally on the party (including, without limitation,
service by nationally recognized overnight courier service) to whom notice is to
be given, or on the third day after mailing to the party to whom notice is to be
given, by certified mail, return receipt requested, postage prepaid, at the
address set forth below, or on the date of service if delivered by facsimile to
that facsimile number set forth below which facsimile is confirmed within three
(3) days by deposit of a copy of such notice in certified mail, return receipt
requested, postage prepaid at the address set forth below. Any party may change
its address for the purposes of this paragraph by giving the other parties
written notice of the new address in the manner set forth above.

<PAGE>

                   To SIGA:        SIGA Technologies, Inc.
                                   420 Lexington Avenue, Suite 620
                                   New York, NY 10170
                                   Attention:   Thomas N. Konatich
                                                Chief Financial Officer
                                   Telephone:   212-672-9100

                   To Bridge:      Bridge Ventures, Inc.
                                   1241 Gulf of Mexico Drive
                                   Longboat Key, Fl 34228
                                   (941) 387-8388

BRIDGE VENTURES, INC.

/s/ Harris Freedman
------------------------
By:

Nov. 1, 2002
------------------------
Date:

SIGA TECHNOLOGIES, INC.

/s/ Thomas N. Konatich
------------------------
Thomas N. Konatich
Chief Financial Officer

Nov. 1, 2002
------------------------
Date:Exhibit 10(bbb)

                     AMENDMENT NO. 2 TO EMPLOYMENT AGREEMENT

      This AMENDMENT NO. 2 TO EMPLOYMENT AGREEMENT (this "Amendment No. 2"),
dated as of Nov 5, 20O2 (the "Effective Date of Amendment No. 2"), between SIGA
Technologies, Inc., a Delaware corporation (the "Corporation"), and Thomas N.
Konatich ("Konatich"), amends and waives certain provisions of the Amended and
Restated Employment Agreement, dated as of October 6, 2000, between the
Corporation and Konatich, as amended by the Amendment and Waiver, dated as of
January 31, 2002, (collectively, the "Existing Agreement"). Capitalized terms
used but not defined herein shall have the respective meanings assigned to them
in the Existing Agreement.

            WHEREAS, under the Existing Agreement, the Initial Term ends on
      December 31, 2002; and

            WHEREAS, the Corporation and Konatich desire to amend the Existing
      Agreement as provided in this Amendment No. 2.

            NOW THEREFORE, in consideration of the premises and for other good
      and valuable consideration, the receipt and sufficiency of which is hereby
      acknowledged, the undersigned, intending legally to be bound, hereby agree
      as follows:

            1. Section 1 of the Existing Agreement shall be amended to read in
      its entirety as follows:

                  1. Employment for Term. The Corporation hereby employs
            Konatich and Konatich hereby accepts employment with the Corporation
            for the period beginning on January 19,2000 and ending September 30,
            2004 (the "Initial Term"), or upon the earlier termination of the
            Term pursuant to Section 6. The termination of Konatich's employment
            under this Agreement shall end the Term but shall not terminate
            Konatich's or the Corporation's other agreements in this Agreement,
            except as otherwise provided herein.

            2. Section 3(a) of the Existing Agreement shall be amended to add
      the following sentence at the end thereof:

            From and after the closing date of the Corporation's financing
            contemplated by that certain Private Placement Memorandum, dated
            July 24, 2002 relating to the sale by the Corporation of certain
            units consisting of Common Stock and Warrants to purchase Common
            Stock, the Base Salary shall be not less than $210,000 per annum,
            and the Corporation shall make the appropriate adjustments to its
            payroll.

            3. Section 3(b) of the Existing Agreement shall be amended to add
      the following sentence to the end thereof:

                                      -1-

<PAGE>

      75,000 shares immediately and with respect to the remaining 75,000 shares
      on September 1, 2003, pursuant to a Stock Option Grant Agreement in
      substantially the form attached hereto as Exhibit A2A.

            4. The Existing Agreement shall be amended to add an Exhibit A2A
      thereto in the form of Exhibit A2A hereto.

            5. Any event occurring prior to the Effective Date of Amendment No.
      2 that would otherwise constitute a Change of Control shall not be deemed
      a Change of Control for purposes of the Agreement.

            6. Neither the amendments set forth in this Amendment No. 2, nor any
      event that took place prior to the Effective Date of Amendment No. 2,
      shall be deemed to constitute a breach of the Existing Agreement by the
      Corporation.

                      (Signature page follows immediately]

                                      -2-

<PAGE>

      IN WITNESS WHEREOF, the parties hereto have executed this Amendment No. 2
as of Nov 5, 2002.

SIGA TECHNOLOGIES, INC.

By:   /s/ Donald G. Drapkin
   ----------------------------
   Name:  Donald G. Drapkin
   Title: Chairman of the Board

/s/ Thomas N. Konatich
-------------------------------
    Thomas N. Konatich

                                      -3-

Source: [{"source": "alea-institute/alea-institute/kl3m-data-edgar-agreements/train-00050-of-00352.parquet"}, [{"source": "alea-institute/alea-institute/kl3m-data-edgar-agreements/train-00050-of-00352.parquet"}]]