File photo shows protesters holding up signs behind BP America Chairman and President McKay in Washington, during a hearing on the Deepwater Horizon gulf oil spill

 
File photo shows protesters holding up signs behind BP America Chairman and President McKay in Washington, during a hearing on the Deepwater Horizon gulf oil spill
Protesters hold up signs behind BP America Chairman and President Lamar McKay (C) before he testifies at the Senate Homeland Security and Governmental Affairs Committee hearing on Capitol Hill in Washington, on the Deepwater Horizon gulf oil spill in this May 17, 2010 file photo. When BP's Deepwater Horizon oil rig exploded and sank in the Gulf of Mexico last April, killing 11 workers, authorities first reported that no crude was leaking into the ocean. They were wrong. One year on, oil from the largest spill in U.S. history clogs wetlands, pollutes the ocean and endangers wildlife, not to mention the toll it has inflicted on the coastal economies of Florida, Mississippi, Alabama and especially Louisiana. REUTERS/Kevin Lamarque/Files (UNITED STATES - Tags: ANNIVERSARY BUSINESS CIVIL UNREST DISASTER POLITICS ENERGY ENVIRONMENT)