Tech. Sgt. Jeffrey Hutchison, 620th Ground Support Training Squadron noncommissioned officer in charge of combat arms, teaches an explosives safety course at the Nuclear Security Combat Training Center at Camp Guernsey, Wyo., Feb. 16, 2014 (U.S. Air Force photo by Staff Sgt. Jonathan Snyder/RELEASED)
Staff Sgt. Jonathan Snyder
Taken on 16 February 2014
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