(Editor's Note: This story has been updated to reflect that the Navy's delivery of additional information to Congress is a goal and not a firm commitment.) The Navy secretary this week said he hopes to deliver to Congress detailed information about potential cost savings realized through a two-ship buy of the third and fourth Ford-class aircraft carriers by "mid-fall." The new target date to provide that information on a two-ship procurement of the aircraft carriers Enterprise (CVN-80) and the...