Fox News Flash top headlines are here. Check out what's clicking on FoxNews.com. New Virginia-class attack submarines are being built with a massive increase in firepower, much more sensitive and with powerful sonar detection and a new generation of computing, navigation, and command and control systems … and the Navy does not have enough of them. It is a challenge that the Navy’s recently released 30-year shipbuilding plan seeks to correct, by calling for an increase in submarine production and acquisition in coming years to address emerging threats, meet growing requests from Combatant Commanders and greatly expand the mission scope for attack submarines to include more reconnaissance and clandestine undersea patrols.