** FILE ** An F-22 Raptor takes off from Langley Air Force Base in Hampton, Va., as a crew member prepares an F-15 for flight operations. (Associated Press)
**FILE** An Air Force analyst monitors combat operations in Afghanistan from the operations center for the 497th Intelligence, Surveillance and Reconnaissance Group at Langley Air Force Base in Hampton, Va. (Associated Press/U.S. Air Force)
An Air Force analyst monitors combat operations in Afghanistan from the operations center for the 497th Intelligence, Surveillance and Reconnaissance Group at Langley Air Force Base in Hampton, Va. (AP Photo/U.S. Air Force)
**FILE** An Air Force analyst monitors combat operations in Afghanistan from the operations center for the 497th Intelligence, Surveillance and Reconnaissance Group at Langley Air Force Base in Hampton, Va. (Associated Press/U.S. Air Force)
Air Force analysts in the operations center of the 497th Intelligence, Surveillance and Reconnaissance Group at Langley Air Force Base in Hampton, Va., monitor combat operations in Afghanistan. (AP Photo/U.S. Air Force)
Air Force analysts in the operations center of the 497th Intelligence, Surveillance and Reconnaissance Group at Langley Air Force Base in Hampton, Va., monitor combat operations in Afghanistan. (AP Photo/U.S. Air Force)
In this photo taken by AP Images for the American Logistics Association, President Obama looks on, left, as first lady Michelle Obama speaks to the crowd gathered at Langley Air Force Base in Hampton, Va., on Wednesday Oct. 19, 2011. (Stephanie Oberlander/AP Images for American Logistics Association)
** FILE ** An F-22 Raptor takes off from Langley Air Force Base in Hampton, Va., as a crew member prepares an F-15 for flight operations. (Associated Press)
