The Daily Press reports that a new Navy shipbuilding plan envisions a future fleet with one fewer aircraft carrier and six fewer attack submarines than exist today, posing a threat to jobs at Northrop Grumman Newport News in the next decade. The draft plan, which was obtained by the Daily Press but won't be released until February, calls for a total combat force of 313 ships, a significant increase from today's fleet of about 281 ships. But that total masks a proposed decline in the large - and costly - ships that sustain major shipyards like Newport News. The overall increase in fleet size can be explained by the Navy's plan to buy 55 Littoral Combat Ships - small, fast attack boats that can patrol waters close to shore. None of those ships exist today.