Cleaning oil-soaked wetlands may be impossible

In this photo provided by the U.S. Coast Guard, spilled oil from a pipeline operated by Chevron Pipe Line Company is seen in the Delta National Wildlife Refuge near Venice, La., Tuesday, April 6, 2010. (AP Photo/handout, U.S. Coast Guard)

May 22, 2010 6:37:24 PM PDT
The gooey oil washing into the maze of marshes along the Gulf Coast could prove impossible to remove, leaving a toxic stew lethal to fish and wildlife, government officials and independent scientists said.

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