Demo
U.S. Air Force Staff Sgt. Gary Wilder, 23d Operations Support Squadron NCO in charge of airfield systems, details proper usage of a tower climbing harness to group and squadron commanders Sept. 12, 2014, at Moody Air Force Base, Ga. The air traffic control and landing systems flight, previously attached to the 23d Communications Squadron, has been realigned to the 23d OSS to support the 23d Fighter Group. (U.S. Air Force photo by Airman 1st Class Ryan Callaghan/Released)