WASHINGTON, DC - MAY 18: (L-R) Sen. Lamar Alexander (R-TN), Sen. Thad Cochran (R-MS), Senate Minority Leader Mitch McConnell (R-KY) and Sen. Susan Collins (R-ME) listen to Energy Secretary Steven ... more 
WASHINGTON, DC - MAY 18: (L-R) Sen. Lamar Alexander (R-TN), Sen. Thad Cochran (R-MS), Senate Minority Leader Mitch McConnell (R-KY) and Sen. Susan Collins (R-ME) listen to Energy Secretary Steven Chu testify about the Paducah Gaseous Diffusion Plant during a hearing of the Senate Appropriations Committee Energy and Water Development Subcommittee on Capitol Hill May 18, 2011 in Washington, DC. Chu testified about the Energy Department's proposed FY2012 budget. (Photo by Chip Somodevilla/Getty Images) less 
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Getty Images | Photo By Chip Somodevilla / Getty Images
Wed, May 18, 2011 3:58 PM EDT