It is a nearly cloudless early June morning on Caminada Bay, Louisiana, aboard a boat surrounded by marshlands and pelicans. 

Dolphins appear alongside the boat as 72-year-old Wilbert Collins guides the way through the reefs.

Scanning the horizon, there is no apparent oil sheen. All the eye can see is what appears to be clean water and a string of orange booms surrounding the bay that people here hope will keep the oil out…

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