As the Marine Corps moves to build its new Light Amphibious Warship to transport Marines in the Pacific, five shipbuilders have emerged as the leading contenders for the program: Austal USA, Fincantieri Marinette Marine, Bollinger Shipyards, TAI Engineers and VT Halter Marine. Those five companies received concept design contracts with options for preliminary designs, Navy spokesman Capt. Clay Doss told Inside Defense . Those preliminary design options were exercised last month, Doss said. Doss said the upcoming request for proposals...