Lawmakers are pushing to expand the Virginia-class attack submarine industrial base, allocating $200 million in the fiscal year 2022 defense authorization bill to allow three Virginia-class submarines to be built each year. Leaders of the two Virginia-class submarine shipbuilders -- General Dynamics Electric Boat and Huntington Ingalls Industries Newport News Shipbuilding -- say a substantial investment in the industrial base is necessary to allow the companies to add a third Virginia-class submarine. The shipbuilders build two Virginia-class subs a year,...