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Beach vigil marks anniversary of BP oil spill

Patrick Semansky / AP

Betty Doud lights candles in front of crosses representing the 11 victims of the Deepwater Horizon oil rig explosion before a vigil to mark the first anniversary of the BP PLC oil spill on a beach in Grand Isle, La., Wednesday, April 20, 2011.

See the most compelling images from the oil spill one year ago.