Barges line up to block oil are seen from the air in The Rigolets, which connects the Gulf of Mexico and Lake Borgne to Lake Pontchartrain, in New Orleans, La., Tuesday, July 6, 2010. Oil from the Deepwater Horizon oil spill has infiltrated Lake Pontchartrain for the first time.  (AP Photo/Gerald Herbert)AP - New Orleans, which managed to escape the oil from the BP spill for more than two months, can't hide any longer.




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