A paratrooper with the 82nd Airborne Division’s 1st Brigade Combat Team uses a Handheld Interagency Identity Detection Equipment, or HIIDE, to scan the iris of an Afghan villager May 29, 2012, Ghazni Province, Afghanistan. The system catalogs biometric data that can be used to identify persons of interest. (U.S. Army photo by Sgt. Michael J. MacLeod)