NDI
From left to right: Staff Sgt. Matthew Barnes, 366th Equipment Maintenance Squadron non-destructive inspections craftsman, Senior Airman Violette Zeimet, 366th EMS NDI journeyman, and Senior Airman Phillip Young, 366th EMS NDI journeyman, pose for a photo in front of their occupational crest Jan. 15, 2016, at Mountain Home Air Force Base, Idaho. NDI personnel must be proficient in identifying metals, metals' flaws and have a strong understanding of radiological safety.(U.S. Air Force photo by Senior Airman Jeremy L. Mosier/Released)