U.S. Air Force Master Sgt. Robert Stewart, 192nd Mission Support Group emergency management technician, checks the vital signs of an Airman during Integrated Base Emergency Response and Capability training at Langley Air Force Base, Va., Jan. 14, 2015. Before putting on hazardous material suits, Airmen had their blood pressure and heart rate monitored. (U.S. Air Force photo by Senior Airman Kayla Newman/Released) (Photo was cropped, sharpened and levels were used to emphasize subject.)