Senate lawmakers are moving to more than double Air Force spending in fiscal year 2019 on a new ultra-fast prototype missile -- the Hypersonic Conventional Strike Weapon -- recommending an additional $100 million for the high-priority effort in a move that would lift total allocation for the Lockheed Martin-led project to $178 million. The Senate Armed Services Committee's mark of the FY-19 defense authorization bill recommends the $100 million increase, a boost of nearly 130 percent for the HCSW program,...