The Trump administration is turning to a defense technology giant in a $6.6 billion effort to speed production of submarines as the U.S. struggles to keep pace with China's vast shipbuilding capacity.The ramp-up in production brings a Silicon Valley-style manufacturer into one of the Pentagon's most troubled industrial bases as they fall behind expected pace of two Virginia-class attack submarines per year.Anduril will build a more than 2-million-square-foot shipyard at Sparrows Point shipyard just outside of Baltimore to manufacture critical submarine components, eventually scaling up to larg...