In a major setback to Pentagon plans to accelerate development of a new ballistic missile defense interceptor to protect against North Korean and potential Iranian threats, the Missile Defense Agency is delaying development and fielding of the Redesigned Kill Vehicle by up to two years because the warhead blueprint is not ready for prototype manufacturing. MDA revealed this delay as part of its $9.4 billion fiscal year 2020 budget request, which is down from the $10.5 billion Congress appropriated in...