A controlled burn is seen from the air near the source of the BP Plc Deep Water Horizon oil spill site in the Gulf of Mexico off the coast of Louisiana, U.S., on Sunday, July 11, 2010. Oil is once again gushing freely into the Gulf of Mexico as BP Plc is in the process of changing out the cap from the leaking well and plans to have a new cap installed over the next few days that will allow for oil to be captured efficiently. Photographer: Derick E. Hingle/Bloomberg
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