Editor's Note: This story was updated after publication to correct the timing of the Pentagon's revocation of Lockheed Martin's certification. Recently uncovered shortcomings in Northrop Grumman's systems for managing the cost and schedule of multibillion-dollar shipbuilding programs reflect challenges facing the defense industry at large, Northrop CEO and President Wes Bush said today. Inside the Pentagon reported last week that Northrop's shipyard in Newport News, VA, has an earned value management system (EVMS) that is noncompliant in several...