U.S. Soldiers assigned to the 202nd Explosive Ordnance Disposal Company, 201st Regional Support Group, Alabama Army National Guard, with a member of the Bureau of Alcohol, Tobacco and Firearms, talk about the placement of a remote-controlled robot in a residential-search scenario during exercise Ravens Challenge VIII at Redstone Arsenal, Alabama, July 1, 2014. Ravens Challenge is a national-level interoperability exercise with multiple state and federal agencies hosted by the Bureau of Alcohol, Tobacco and Firearms.