NATIONAL HARBOR, MD -- Government and industry Joint Strike Fighter officials are "reinvigorating" efforts to make the aircraft more reliable and maintainable after discovering a variety of parts that require maintenance too frequently and at unnecessary expense, F-35 Program Executive Officer Lt. Gen. Christopher Bogdan said today. The comments came during a mostly positive speech from Bogdan, who delivered a harsh critique of the F-35 and prime contractor Lockheed Martin last year at the same venue, an Air Force Association...