OBAMA 'BUMP' U.S. Air Force Capt. Kristen Gibson gets her photo taken while giving President Barack Obama a "fist-bump" at the Veterans of Foreign Wars national convention in Phoenix, Ariz., Aug. 17, 2009. Gibson is assigned to the 56th Operations Group. SHARE: Download: Full Size (0.08 MB) Credit: VIRIN: 950054-F-GGV57-962.jpg Photo Gallery