Associate research engineer Cassandra Stanfill, with Intelligence, Surveillance Augmentation, and Reconnaissance Branch, uses eye-tracking technology, among other methods, on test subject, Lieutenant Michael Emard, at Air Force Research Laboratory, Wright Patterson Air Force Base, Dayton, Ohio, July 21, 2016 (U.S. Air Force/J.M. Eddins, Jr.)

Photo by: Joseph Eddins |  VIRIN: 160721-F-LW859-007.JPG