President Obama and Florida Gov. Charlie Crist walk along Casino Beach on Pensacola Beach, Fla.,Tuesday, June 15, 2010, as they visited the Gulf Coast region affected by the BP Deepwater Horizon oil spill. (AP Photo/Charles Dharapak)

Photo by: Charles Dharapak

President Obama and Florida Gov. Charlie Crist walk along Casino Beach on Pensacola Beach, Fla.,Tuesday, June 15, 2010, as they visited the Gulf Coast region affected by the BP Deepwater Horizon oil spill. (AP Photo/Charles Dharapak)