Editor's Note: This story originally reported that 134 countries had bought the Advanced Medium-Range Air-to-Air Missile (AMRAAM). The correct number is 34, and the article has been updated to reflect that. The Missile Defense Agency has awarded Raytheon a $10 million contract to continue research-and-development work on a nascent effort to build an air-launched missile to shoot down ballistic missiles early in flight, a company official said today. The proposed Net-Centric Airborne Defense Element (NCADE) is a two-stage missile with...