U.S. Air Force Tech. Sgt. Chase Whaley, 1st Maintenance Squadron Metals Technology aircraft metals technologist, uses a saw to cut metal at Langley Air Force Base, Va., Feb. 19, 2013. The Metals Tech shop is known as the “last chance shop” because equipment is taken here to be repaired as a final effort. (U.S. Air Force photo by Senior Airman Teresa Aber/Released)