Airman 1st Class Michael Vue, 455th Expeditionary Security Forces Squadron entry controller, scans an Afghan woman's iris in the waiting area of the Egyptian Hospital at Bagram Air Field, Afghanistan, April 16, 2013. Medical teams use biometrics to identify and track the records for all incoming patients by scanning their iris and fingerprints and then inputting the information into a database. (U.S. Air Force photo/Senior Airman Chris Willis)