President Barack Obama, first lady Michelle Obama, partially visible second from right, and daughter Sasha, right, greet people at Tyndall Air Force Base in Panama City, Fla, Saturday, Aug. 14, 2010, upon their arrival. The Obamas are spending the weekend in Florida. (AP Photo/Susan Walsh)

Photo by: Susan Walsh

President Barack Obama, first lady Michelle Obama, partially visible second from right, and daughter Sasha, right, greet people at Tyndall Air Force Base in Panama City, Fla, Saturday, Aug. 14, 2010, upon their arrival. The Obamas are spending the weekend in Florida. (AP Photo/Susan Walsh)