Staff Sgt. Brian Davis, 319th Civil Engineer Squadron unit deployment manager, turns in a bag of prescription and over-the-counter medications Oct. 26, 2013, at the Base Exchange on Grand Forks Air Force Base, N.D. Oct. 26 was designated as Drug Take-Back Day for the base, where base employees and residents could turn in their expired and unused drugs for disposal. (U.S. Air Force photo/Staff Sgt. Susan L. Davis)