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Capt. Daniel Blomberg, 341st Civil Engineer Squadron explosive ordnance disposal flight commander, left, Staff Sgt. Randolph Shandler, 341st CES EOD team leader, center, and Tech. Sgt. Paul Willson, 341st CES EOD NCO in charge of quality assurance, conduct a safety briefing before an explosive operation Nov. 21, 2016, at Malmstrom Air Force Base, Mont. The EOD team is now using a 3-D printer to produce training aids that allow for realistic training without having to preserve them for future training. The training aids can now be made at a low cost, allowing more practical training and saving the unit hundreds to thousands of dollars each year. (U.S. Air Force photo/Airman 1st Class Daniel Brosam)