U.S. Air Force Airman Isaiah Edwards, 380th Expeditionary Maintenance Squadron non-destructive inspection technician, identifies cracks in an aircraft part at Al Dhafra Air Base, United Arab Emirates, Dec. 7, 2018. NDI combines science with technology to evaluate the integrity of structures, metals, system components, and fluids without causing any damage, or impairing future usefulness to any parts. (U.S. Air Force photo by Senior Airman Mya M. Crosby)