EditorialOlympic gold medalist swimmer Aaron Piersol and Actress Kate Walsh attend a rally to mark the one-year anniversary of the BP oil spill in Washington, District of Columbia, United States - 20 Apr 2011
EditorialActress Kate Walsh speaks at a rally marking the one-year anniversary of the BP oil spill in Washington, District of Columbia, United States - 20 Apr 2011
EditorialActress Kate Walsh attends a rally to mark the one-year anniversary of the BP oil spill in Washington, District of Columbia, United States - 20 Apr 2011
EditorialSenate committee examines use of dispersants in Deepwater oil spill on Capitol Hill, Washington, District of Columbia, United States - 15 Jul 2010