Betty Doud lights candles near crosses honoring the workers who died on the Deepwater Horizon oil platform, during a service marking the one-year anniversary of the BP oil spill, in Grand Isle, Louisiana April 20, 2011. [Photo/Agencies]

A woman walks with a flashlight along a row of crosses honoring the workers who died on the Deepwater Horizon oil platform, during a service marking the one-year anniversary of the BP Oil Spill in Grand Isle, Louisiana April 20, 2011.[Photo/Agencies]