UPDATE 1-Pentagon still not confident about Raytheon GPS control system
April 12, 2016 at 16:36 PM EDT
BUCKLEY AIR FORCE BASE, Colo., April 12 (Reuters) - U.S. Deputy Defense Secretary Robert Work on Tuesday said he was still not confident about completion of a long-delayed, over-budget ground-based system being developed by Raytheon Co to control new GPS satellites built by Lockheed Martin Corp.