Wisner Properties Field Inspector Forrest Travirca displays oiled sand in a sifter as a cleanup crew works on Fourchon Beach in Port Fourchon, La., Wednesday, April 20, 2011. Even as somber ... more 
Wisner Properties Field Inspector Forrest Travirca displays oiled sand in a sifter as a cleanup crew works on Fourchon Beach in Port Fourchon, La., Wednesday, April 20, 2011. Even as somber remembrances marked the first anniversary of the worst offshore oil spill in American history, there were reminders that lengthy legal battles lay ahead. BP filed a lawsuit alleging negligence by the maker of the device that failed to stop the spill, while the manufacturer of the blowout preventer and rig owner filed their own claims. less 
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Associated Press | Photo By Patrick Semansky
Wed, Apr 20, 2011 7:10 PM EDT