A bipartisan congressional group has introduced a $25 billion shipyard improvement bill that will provide $21 billion for the Navy's four public shipyards. The bill, proposed by a group of senators and congressmen who represent states and districts near the shipyards, also includes $4 billion for the nation's private shipyards. Sens. Roger Wicker (R-MS), Tim Kaine (D-VA), Susan Collins (R-ME), Angus King (I-ME), Jeanne Shaheen (D-NH) and Reps. Rob Wittman (R-VA) and Mike Gallagher (R-WI) introduced the bill, titled the...