Staff Sgt. Samuel Wright, a Headquarters &amp; Headquarters Squadron explosive ordnance technician, checks the ingredients in a bottle during a simulated scenario training exercise held at Marine Corps Air Station Yuma, Ariz., Nov. 12. Donning a lightweight SCBA (self-contained breathing apparatus) Tychem-F chemical protective suit, Wright evaluates the scene and mitigating factors to best determine the safest course of action.
Cpl. Uriel Avendano
Taken on 5 November 2013
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