House and Senate negotiators have included a second Virginia-class submarine in the final 2021 defense authorization bill . The Navy had originally asked for just one Virginia-class submarine, a move that rankled congressional leaders who support buying two Virginia-class submarines a year. Last week, the Trump administration asked Congress to fund a second submarine. Both leaders of the House Armed Services seapower and projection forces subcommittee -- Chairman Joe Courtney (D-CT) and Ranking Member Rob Wittman (R-VA) -- back adding...