Lance Cpl. David Engel uses a mine detector to sweep for mock improvised explosive devices. U.S. Marine Corps Lance Cpl. David Engel, an anti-tank missileman with Weapons Company, 3rd Battalion, 3rd Marine Regiment, uses a mine detector to sweep for mock improvised explosive devices during counterinsurgency training at Schofield Barracks, Hawaii, on Aug. 2, 2011. SHARE: Download: Full Size (0.08 MB) Credit: VIRIN: 866301-Q-KBH97-261.jpg Photo Gallery