The Navy may have to re-open negotiations for a major shipbuilding agreement it brokered between General Dynamics and Northrop Grumman in June 2002 if the service proceeds with plans to curtail the LPD-17 shipbuilding program. Under the agreement, the two industry giants swapped shipbuilding work worth billions of dollars. GD's Bath Iron Works shipyard in Maine relinquished to Northrop work on four San Antonio-class LPD-17 amphibious ships. In exchange for the LPD-17s, it was decided Bath would build four Arleigh...