U.S. Air Force Senior Airman Charles Sothikhoun, 18th Equipment Maintenance Squadron Nondestructive Inspection technician, hangs up an aircraft X-ray at the NDI shop on Kadena Air Base, Japan, Nov. 5, 2013. NDI uses multimillion-dollar equipment from an X-ray machine to a special dye that glows under a black light to inspect the integrity of roughly 500 parts a month. (U.S. Air Force photo by Senior Airman Maeson L. Elleman)