Document:

WARRANT
      CLARIFICATION AGREEMENT NO. 2

    

    This
      Warrant Clarification Agreement (this “Agreement”), dated December 8, 2006, is
      to the Warrant Agreement, dated as of July 13, 2005 (the “Original Warrant
      Agreement”), by and between Fortress America Acquisition Corporation, a Delaware
      corporation (“Company”), and Continental Stock Transfer & Trust Company, a
      New York corporation, as amended by Warrant Clarification Agreement dated
      October 27, 2006 (as amended, the “Warrant Agreement”).

    

    WHEREAS,
      Section
      3.3.2 of the Original Warrant Agreement provided that Company shall not be
      obligated to deliver any securities pursuant to the exercise of a warrant unless
      a registration statement under the Securities Act of 1933, as amended, with
      respect to the common stock underlying the warrants is effective. 

    

    WHEREAS,
      in
      furtherance of the foregoing, the Company’s final prospectus, dated July 13,
      2005, indicated (i) that no warrant would be exercisable unless at the time
      of
      exercise a prospectus relating to the common stock issuable upon exercise of
      the
      warrant is current and the common stock has been registered or qualified or
      deemed to be exempt under the securities laws of the state of residence of
      the
      holder of the warrant and (ii) that the warrant may be deprived of any value
      and
      the market for the warrant may be limited if the prospectus relating to the
      common stock issuable upon the exercise of the warrant is not current or if
      the
      common stock is not qualified or exempt from qualification in the jurisdictions
      in which the holder of the warrant resides.

    

    WHEREAS,
      as a
      result of certain questions that have arisen regarding the accounting treatment
      applicable to the warrants, the parties hereto deem it necessary and desirable
      to further amend the Warrant Agreement to clarify that (i) the warrants under
      the Warrant Agreement may expire unexercised or unredeemed if there is no
      effective registration statement and (ii) there are no circumstances under
      which
      the Company will be required to net cash settle the warrants.

    

    NOW,
      THEREFORE,
      in
      consideration of the mutual agreements contained herein and other good and
      valuable consideration, the receipt and sufficiency of which are hereby
      acknowledged, and intending to be legally bound hereby, the parties hereto
      agree
      to amend the Warrant Agreement as set forth herein.

    

    1.
       Warrant
      Agreement.
      The
      Warrant Agreement is hereby clarified and amended, effective as of the date
      of
      the Warrant Agreement, by replacing the penultimate sentence of Section 3.3.2
      with the following sentence:

    

    “Furthermore,
      (i) if a Warrant has not previously been exercised and if there is no then
      current and effective registration statement under the Act covering the Warrant
      on the Expiration Date, the Warrant will expire unexercised and unredeemed
      on
      the Expiration Date and (ii) under no circumstances will the Company be
      obligated to pay registered holders any cash or other consideration or otherwise
      “net cash settle” the Warrants.”

    

    2. Miscellaneous.

    

    (a) Governing
      Law.
      The
      validity, interpretation, and performance of this Agreement and of the Warrants
      shall be governed in all respects by the laws of the State of New York, without
      giving effect to conflicts of law principles that would result in the
      application of the substantive laws of another jurisdiction. The Company hereby
      agrees that any action, proceeding or claim against it arising out of or
      relating in any way to this 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 inconvenience
      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 of the Warrant Agreement. Such mailing shall be deemed personal service
      and
      shall be legal and binding upon the Company in any action, proceeding or
      claim.

     

    
      
         

      

      
         

        
          

        

      

      
         

      

    

      

    (b) Binding
      Effect.
      This
      Agreement shall be binding upon and inure to the benefit of the parties hereto
      and to their respective heirs, legal representatives, successors and
      assigns.

    

    (c) Entire
      Agreement.
      This
      Agreement sets forth the entire agreement and understanding between the parties
      as to the subject matter thereof and merges and supersedes all prior
      discussions, agreements and understandings of any and every nature among them.
      Except as set forth in this Agreement, provisions of the Warrant Agreement
      which
      are not inconsistent with this Agreement shall remain in full force and effect.
      This Agreement may be executed in counterparts.

    

    (d) Severability.
      This
      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 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 part of this Agreement a provision as similar
      in
      terms to such invalid or unenforceable provision as may be possible and be
      valid
      and enforceable. 

     

    
      
         

      

      
        -2-

        
          

        

      

      
         

      

    

    

    IN
      WITNESS WHEREOF, the parties hereto have executed this Warrant Clarification
      Agreement No. 2 as of the date first written above.

    

     

    
      	 	
              FORTRESS
                AMERICA ACQUISITION CORPORATION

            
	 	 	 
	 	 	 
	 	
              By:
                

            	
              /s/
                Harvey Weiss

            
	 	 	
              Harvey
                Weiss, President

            
	 	 	 
	 	 	 
	 	 	 
	 	
               

            	 
	 	 	 
	 	
               

            	 
	 	
              CONTINENTAL
                STOCK TRANSFER & TRUST COMPANY

            
	 	
               

            	 
	 	
               

            	 
	 	
              By:
                

            	
              /s/
                Steven G. Nelson

            
	 	 	
              Steven
                G. Nelson, President

            

    

    

      

    
      
         

      

      
        -3-AMENDMENT
      NO. 2 TO UNIT PURCHASE OPTION

    

    This
      AMENDMENT NO. 2 TO UNIT PURCHASE OPTION (this “Amendment”), dated December 8,
      2006, is made by and between Fortress America Acquisition Corporation (the
      “Company”) and Sunrise Securities Corp. (“Sunrise”).

    

    WHEREAS,
      the Company issued that certain Unit Purchase Option, dated July 13, 2005 (the
      “Unit Purchase Option”) to Sunrise; 

    

    WHEREAS,
      the Company and Sunrise entered into that certain Amendment to Unit Purchase
      Option dated October 27, 2006; and

    

    WHEREAS,
      the parties hereto have agreed that the Unit Purchase Option, as previously
      amended, be further amended as set forth herein to clarify the understanding
      between the parties with respect to the terms of the Unit Purchase Option
      effective as of the date of its issuance.

    

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

    

    1. Amendment
      to the Unit Purchase Option.
      To
      reflect the original intention of the parties, Section 5.3 of the Unit Purchase
      Option, as previously amended, is and shall be further amended and restated
      in
      its entirety, effective as of the date of the Unit Purchase Option, as
      follows:

     

    “5.3 No
      Net-Cash Settlement or Damages Upon Failure of Registration.
      (i) If
      the Purchase Option has not previously been exercised and if there is no then
      current and effective registration statement under the Act covering the Purchase
      Option and the other Registrable Securities, the Purchase Option will expire
      unexercised and unredeemed on the Expiration Date. (ii) Under no circumstances
      shall the Holder of this Purchase Option be entitled to (a) net-cash settlement
      of this Purchase Option or the Warrants underlying the Purchase Option,
      regardless of whether any or all of the Registrable Securities have been
      registered by the Company pursuant to an effective registration statement,
      or
      (b) receive any damages if any or all of the Registrable Securities have not
      been registered by the Company pursuant to an effective registration statement.
      (iii) The Holder of this Purchase Option will not be entitled to exercise this
      Purchase Option or the Warrants underlying this Purchase Option unless a
      registration statement covering the Registrable Securities is effective or
      an
      exemption from registration is available. (iv) The foregoing provisions of
      this
      Section 5.3 do not relieve the Company of its obligation to use its best efforts
      to have a registration statement or post-effective amendment filed pursuant
      to
      Section 5.1 declared effective as soon as possible after receiving the Initial
      Demand Notice.”

    

    2. Reference
      to and Effect on the Unit Purchase Option.
      Upon
      the due execution and delivery of this Amendment by the parties hereto, on
      and
      after the date hereof each reference in the Unit Purchase Option to this
“Purchase Option”, “hereunder”, “hereof”, “herein” or words of like import
      referring to the Unit Purchase Option shall mean and be a reference to the
      Unit
      Purchase Option, as amended hereby. Except as specifically amended above, the
      Unit Purchase Option shall remain in full force and effect and is hereby
      ratified and confirmed.

     

    3. Execution
      in Counterparts.
      This
      Amendment may be executed in one or more counterparts, and by the different
      parties hereto in separate counterparts, each of which shall be deemed to be
      an
      original, but all of which taken together shall constitute one and the same
      agreement, and shall become effective when one or more counterparts has been
      signed by each of the parties hereto and delivered to each of the other parties
      hereto.

     

    [Signature
      Page Follows]

     

    
      
         

      

      
         

        
          

        

      

      
         

      

    

     

    IN
      WITNESS WHEREOF, the parties have executed this AMENDMENT NO. 2 TO UNIT PURCHASE
      OPTION as of the date first set forth above.

     

    

    
      	 	
              FORTRESS
                AMERICA ACQUISITION CORPORATION

            
	 	 	 
	 	 	 
	 	
              By:
                

            	
              /s/
                Harvey Weiss

            
	 	 	
              Harvey
                Weiss, President

            
	 	 	 
	 	 	 
	 	 	 
	 	
              SUNRISE
                SECURITIES CORP.

            
	 	 	 
	 	 	 
	 	
              By:

            	
              /s/
                Marcia Kucher

            
	 	 	
              Marcia
                Kucher 

            

    

    

    
      
         

      

      
        -2-

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