A Raytheon interceptor successfully knocked down a ballistic missile target in a live-fire exercise earlier this month, setting the stage for the Missile Defense Agency to proceed with a long-delayed full-rate production decision of the weapon which is pivotal to U.S. plans to defend American forces and allies against North Korean and Iranian threats. On Oct. 15, the destroyer Donald Cook (DDG-75) -- taking part in a NATO integrated air and missile defense exercise off the Scottish coast called Formidable...