U.S. Air Force Staff Sgt. Joseph Brown, NCO in charge of environmental health with the 1st Special Operations Operational Medical Readiness Squadron, inspects an area for simulated chemical agents during an annual anti-terrorism/force protection exercise at Hurlburt Field, Florida, Aug. 19, 2020. Members of the 1st Special Operations Wing conducted an exercise that simulated a terrorist attack on base to provide inspection teams the opportunity to assess how the base would respond in a real-world attack. (U.S. Air Force photo by Senior Airman Dennis Spain)