Eye protection glasses rest on a bar above a hardware training device in a 1st Battalion, 210th Aviation Regiment, A Company Advanced Individual Training classroom at Fort Eustis, Va., Jan. 30, 2013. The device is used to train students on how to safely secure nuts and bolts, as well as properly use safety wire while repairing aircraft components. (U.S. Air Force photo by Staff Sgt. Ashley Hawkins/Released)