FDA Commissioner Joshua Sharfstein, left, Agricultural Secretary Tom Vilsack, center, testifies on Capitol Hill in Washington, Thursday, May 7, 2009, before a Senate Appropriations subcommittee hearing on the swine flu. AP Photo logo AP Photo 7 months ago

FDA Commissioner Joshua Sharfstein, left, Agricultural Secretary Tom Vilsack, center, testifies on Capitol Hill in Washington, Thursday, May 7, 2009, before a Senate Appropriations subcommittee hearing on the swine flu.