Editor's Note: This story has been updated to reflect a statement from Aerojet Rocketdyne. Boeing is looking to present an integrated team approach with Northrop Grumman for the Air Force’s Ground Based Strategic Deterrent program -- a solution it says will not only address concerns with the solid rocket motor base but could shave two years off the development schedule. “Certainly, GBSD can be developed more rapidly and with lower risk if you utilize the combined capability of Boeing...