President Obama exits Air Force One at Dobbins Air Reserve Base in Marietta, Ga., Monday, Aug. 2, 2010, before speaking at the Disabled American Veterans National Convention in Atlanta. (AP Photo/Stephen Morton)

Photo by: Stephen Morton

President Obama exits Air Force One at Dobbins Air Reserve Base in Marietta, Ga., Monday, Aug. 2, 2010, before speaking at the Disabled American Veterans National Convention in Atlanta. (AP Photo/Stephen Morton)