Senior Airman Bradley Cook, 380th Expeditionary Civil Engineer Squadron, tightens the straps on his gas mask prior to the start of hazmat decontamination training. The 380th ECES Readiness and Emergency Management Flight perform Chemical, Biological, Radiological, and Nuclear detection and decontamination operations as well as emergency management command and control. Airman Cook is deployed from Andrews AFB, Md., and hails from El Paso, Texas.