F-22 Raptors taxi the runway during an operational readiness inspection at Langley Air Force Base, Va., April 10, 2011. The inspection is a two-day evaluation of how quickly and efficiently the 633d Air Base Wing, 1st Fighter Wing and 192nd FW can deploy people, equipment and aircraft while adjusting to rapidly changing security conditions. (U.S. Air Force photo/Airman 1st Class Teresa Zimmerman)