WASHINGTON - MAY 07:  U.S. Agriculture Secretary Tom Vilsack arrives for testimony before the Senate Appropriations Committee Agriculture, Rural Development, Food and Drug Administration and Related Agencies Subcommittee May 7, 2009 in Washington, DC. Vilsack testified on the 2009 H1N1 virus. Getty Images logo Getty Images 7 months ago

WASHINGTON - MAY 07: U.S. Agriculture Secretary Tom Vilsack arrives for testimony before the Senate Appropriations Committee Agriculture, Rural Development, Food and Drug Administration and Related Agencies Subcommittee May 7, 2009 in Washington, DC. Vilsack testified on the 2009 H1N1 virus.