An F-16 Fighting Falcon Thunderbird speeds through a formation during Joint Base-Langley Eustis’ Air Power over Hampton Roads at Langley Air Force Base, Va., May 13, 2011. The U.S. Air Force Demonstration Squadron, the Thunderbirds, display the most advanced airpower and support capabilities in the world. (U.S. Air Force photo/Airman 1st Class Teresa Zimmerman)(RELEASED)