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WASHINGTON, DC - May 4: House Select Committee on Energy Independence and Global Warming Chairman Edward J. Markey, D-Mass., and House Energy and Commerce member Bart Stupak, D-Mich., during a news conference after a briefing on the Gulf of Mexico oil spill with British Petroleum and Halliburton officials..(Photo by Scott J. Ferrell/Congressional Quarterly)

WASHINGTON, DC - May 4: House Select Committee on Energy Independence and Global Warming Chairman Edward J. Markey, D-Mass., and House Energy and Commerce member Bart Stupak, D-Mich., during a news conference after a briefing on the Gulf of Mexico oil spill with British Petroleum and Halliburton officials..(Photo by Scott J. Ferrell/Congressional Quarterly)

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