The U.S. Air Force Air Demonstration Squadron, the Thunderbirds, perform aerial demonstrations during the AirPower over Hampton Roads open house at Langley Air Force Base, Va., May 13, 2011. The open house gives military and civilian personnel the opportunity to look various aircraft used by the military that they would not otherwise have the chance to experience. (U.S. Air Force photo by Staff Sgt. Jeff Nevison)(RELEASED)