The U.S. Air Force Air Demonstration Squadron, the Thunderbirds, perform precision aerial maneuvers during the Air Power over Hampton Roads open house at Langley Air Force Base, Va., May 13, 2011. The Thunderbirds headlined the open house, demonstrating the capabilities of high-performance aircraft to the Hampton Roads, Va. area. (U.S. Air Force photo by Airman 1st Class Camilla Griffin)