The Navy must develop and execute a plan to address major operational challenges facing the service's Littoral Combat Ship program, a Government Accountability Office report released Thursday found. Operational testing on the LCS fleet has found “significant challenges” with the program, including issues with the ship’s seaframes and mission modules, such as mine countermeasures, according to the GAO report . The Navy has started to address issues facing LCS, but there isn’t a comprehensive plan in place to address the...