Ken Hughes, left, Air Force Integrations Center systems engineer, and U.S. Air Force Staff Sgt. Sarah Kearney, 633rd Security Forces Squadron patrolman, send and receive messages during a Joint Expeditionary Force exercise at Langley Air Force Base, Va., Jan. 25, 2012. Participants traveled in groups to various locations to test and collect data on cellular networks and their capabilities. (U.S. Air Force photo by Staff Sgt. Ashley Hawkins/Released)