Adam Zelenko, Allegheny County Airport Authority firefighter, uses a thermal camera to identify people in a smoke-filled munitions storage area during a fire drill at the Pittsburgh International Airport Air Reserve Station, Pennsylvania, Dec. 10, 2020. The 911th Airlift Wing does not have a stand-alone fire department on the installation and therefore relies on the assistance of the neighboring Allegheny County Airport Authority Fire Department. (U.S. Air Force photo by Senior Airman James Fritz)