The GAO found $200 million in sub cost overruns.

A Navy contract that General Dynamics Corp. won last year for four SSN-688 attack submarines already has nearly $200 million in projected overruns because the contractor used out-of-date labor estimates in its final bid, according to the General Accounting Office. The GAO's study said labor hours will be 21% more than the company's Electric Boat division projected in its original estimates, resulting in a $196.1 million cost overrun for the $1.03-billion contract.

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