FINAL PHASE Defense Secretary Leon E. Panetta visits the crew and workers from General Dynamics Electric Boat aboard the Virginia-class attack submarine to be commissioned the USS Mississippi in Groton, Conn., Nov. 17, 2011. Panetta observed the final phase in the building of the submarine, which will be finished a year ahead of schedule and 15 million dollars under budget. SHARE: Download: Full Size (0.07 MB) Credit: VIRIN: 286313-L-SHJ81-970.jpg Photo Gallery