Associated Press
This 2012 photo provided by Steven Murawski shows a fish harvested from the Gulf of Mexico with unusual lesions and infections. Two years after the Deepwater Horizon rig exploded and sank, touching off the worst offshore spill in U.S. history, the latest research into its effects is starting to back up those early reports from the docks: The ailing fish bear hallmarks of diseases tied to petroleum and other pollutants. (AP Photo/Courtesy Steven Murawski)

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