Well Obama could have taken a more intelligent and more reasoned tack by pointing out his own budget item, or alternatively, Romney could have pointed this out to Obama. Most likely neither knew.

10 Ships for U.S. Navy in New Budget
Feb. 12, 2012 - 10:06AM |

By CHRISTOPHER P. CAVASAt least $12.8 billion in shipbuilding funds will be part of the Obama administration’s fiscal 2013 defense budget, according to a Pentagon document prepared for Feb. 13 news briefings and obtained by Defense News.
That’s enough for 10 new warships, and includes money to start construction on a new aircraft carrier and refuel another.
http://www.defensenews.com/...-U-S-Navy-New-Budget