SUBMARINE LINE U.S. Navy Petty Officer 3rd Class Chuck Youngberg throws a line from the fast-attack submarine USS Pittsburgh to the pier in Groton, Conn., Feb. 4, 2009. Pittsburgh returned to Submarine Base New London from a scheduled six-month deployment to the U.S. Southern Command and Africa Command areas of responsibility. SHARE: Download: Full Size (0.04 MB) Credit: VIRIN: 165152-E-MNL00-624.jpg Photo Gallery