Airman secures nation by revealing unknown dangers
Senior Airman Christopher Hurd, 51st Maintenance Squadron nondestructive inspection technician, examines defects during an inspection at Osan Air Base, South Korea, March 16, 2020. NDI technicians use dyes and other methods to search for cracks and other imperfections in aircraft and aircraft parts. (U.S. Air Force photo by Staff Sgt. Greg Nash)