Greenpeace USA Executive Director Phil Radford walks through oil washed up along the break water in Southpass where the Mississippi River meets the Gulf of Mexico in Louisiana, Thursday, May, 20, 2010.. The BP leased Deepwater Horizon oil platform exploded April 20 and sank after burning, leaking an estimate of more than 210,000 gallons of crude oil per day from the broken pipeline to the sea. Eleven workers are missing, presumed dead. Photo by Sean Gardner/Greenpeace