U.S. Navy Airman Dustin Leblanc talks on the sound powered telephone aboard the aircraft carrier USS John C. Stennis (CVN 74) during a port visit to Singapore April 01, 2013. The John C. Stennis was deployed to the region conducting maritime security operations, theater security cooperation efforts and support missions for Operation Enduring Freedom. (U.S. Navy photo by Mass Communication Specialist 3rd Class Katarzyna Kobiljak/Released)