Pentagon acquisition chief Frank Kendall has ordered a review of the Air Force's Global Positioning System Next Generation Operational Control System because of execution and requirements stability issues. Speaking briefly to reporters Friday following a speech in Arlington, VA, Kendall said the review is designed to make sure the program, dubbed OCX, is on track. "I want to make sure it's properly structured and that we're doing the right things and I'm also looking for lessons learned," Kendall said. "I...