AT SEA, PERSIAN GULF - MARCH 20:  (EDITORS NOTE: IMAGE RELEASED BY U.S. MILITARY PRIOR TO TRANSMISSION) In this handout image provided by the U.S. Navy, the nuclear-powered fast attack Los Angeles-class submarine USS Hartford is back underway after a collision early this morning on March 20, 2009 at Sea in the Persian Gulf. According to reports from U.S. Navy's 5th Fleet, two U.S. Navy ships, USS Hartford and USS New Orleans, collided on March 20, 2009 in the Strait of Hormuz between Iran and the Arabian peninsula. One of the vessels, the USS Hartford a submarine, was nuclear-powered. Getty Images logo Getty Images 35 months ago

AT SEA, PERSIAN GULF - MARCH 20: (EDITORS NOTE: IMAGE RELEASED BY U.S. MILITARY PRIOR TO TRANSMISSION) In this handout image provided by the U.S. Navy, the nuclear-powered fast attack Los Angeles-class submarine USS Hartford is back underway after a collision early this morning on March 20, 2009 at Sea in the Persian Gulf. According to reports from U.S. Navy's 5th Fleet, two U.S. Navy ships, USS Hartford and USS New Orleans, collided on March 20, 2009 in the Strait of Hormuz between Iran and the Arabian peninsula. One of the vessels, the USS Hartford a submarine, was nuclear-powered.