WASHINGTON, DC - FEBRUARY 16:  Senate Energy and Natural Resources Committee raking member Sen. Lisa Murkowski (R-AK) attends a committee hearing on Capitol Hill February 16, 2011 in Washington, DC. U.S. Energy Secretary Steven Chu testified before the committee about the Obama Administration's proposed Fiscal Year 2012 budget for the Department of Energy.  (Photo by Chip Somodevilla/Getty Images)