President Obama walks past debris on the sidewalks as he tours the Bridgewood neighborhood in LaPlace, La., in the Saint John the Baptist Parish, with local officials to survey the ongoing response and recovery efforts to Hurricane Isaac, Monday, Sept. 3, 2012. (AP Photo/Pablo Martinez Monsivais)

Photo by: Pablo Martinez Monsivais

President Obama walks past debris on the sidewalks as he tours the Bridgewood neighborhood in LaPlace, La., in the Saint John the Baptist Parish, with local officials to survey the ongoing response and recovery efforts to Hurricane Isaac, Monday, Sept. 3, 2012. (AP Photo/Pablo Martinez Monsivais)