An explosive ordnance disposal technician with 6th Civil Engineer Squadron, threads shock tube, a hallow tube of explosives, into the end of a percussion actuated neutralizer (PAN) during a training scenario Aug. 15, 2013, at MacDill Air Force Base, Fla. Airmen from 6th CES demonstrated proper disposal techniques during a month-long training session on conventional munitions. . (U.S. Air Force photo/Airman 1st Class Ned T. Johnston)