DETECTOR TRAINING U.S. Marine Corps Lance Cpl. Ryan Burdge, front, uses a metal detector during counter improvised explosive device training on Camp Leatherneck in Helmand province, Afghanistan, April 3, 2013. Burdge, a rifleman, is assigned to Kilo Company, 3rd Battalion, 4th Marine Regiment. SHARE: Download: Full Size (0.05 MB) Credit: VIRIN: 707667-M-TIN71-039.jpg Photo Gallery