Conservators removed a steel truss from around the recovered Confederate submarine H. L. Hunley yestoday, granting the first unobstructed view anybody has had of the boat in almost 150 years. Story with photos here. The Hunley, you may recall, was the first submarine ever to make a successful attack on another vessel. It sank the USS Housatonic in 1864, but then itself sank almost immediately afterward. Underwater archaeologists managed to raise the wrecking of the Hunley in 2000 and it has been sitting in a tank of water in Charleston until today.