IED search in Sangin

04/22/2011 - U.S. Marine Corps Cpl. Ben W. Gibson, right, with 2nd Combat Engineer Battalion, 1st Battalion, 5th Marines, Regimental Combat Team 8, sweeps for improvised explosive devices with a Vallon metal detector during a reconnaissance patrol in Sangin, Afghanistan, April 22, 2011. U.S. Marines conduct reconnaissance patrols to survey the local populace and maintain familiarity with the area of operations. (DoD photo by Lance Cpl. Kowshon Ye, U.S. Marine Corps/Released)