ELLSWORTH AIR FORCE BASE, S.D. -- (Left to right) Master Sgt. Anthony Blackmon, 28th Civil Engineer Squadron explosive ordnance disposal flight chief, and Staff Sgt. Darryl Wilcken, 28 CES EOD journeyman, tie detonation cords together during a training exercise, March 30. The training was designed to demonstrate proper procedures when disposing of various explosive ordnances. (U.S. Air Force photo/Airman 1st Class Matthew Flynn)