The Pentagon is in negotiations with Lockheed Martin for an annualized sustainment contract for the country's most expensive weapons program, the Joint Strike Fighter, and is evaluating different options such as awarding the work to small businesses. The two sides are working out details for a follow-on to the existing contract, according to a Dec. 1 presolicitation notice posted on the Federal Business Opportunities website. "It is a market research toll being used to determine potential and eligible small business...