House authorizers are moving to impose limitations on the Trump administration's proposed battleship program, with draft defense policy bill language that would prohibit a production contract award until the Navy certifies the ship's weapon systems to be sufficiently mature. The battleship, which was first announced by President Trump in December, is an all-new, large surface combatant projected to wield a variety of still-developing weaponry including the hypersonic Conventional Prompt Strike and the nuclear-armed sea-launched cruise missile (SLCM-N). The Navy...