The Navy will have to pay about a 20 percent cost premium if it sends the attack submarine Boise (SSN-765) to a private shipyard for a maintenance availability because of the backlog at the public yards, according to an official. Vice Adm. Thomas Moore, Naval Sea Systems Command chief, told Inside Defense March 29 the service will make a decision later this year on whether or not it will send the Boise to a private shipyard. "But it's a...