The Next Generation Interceptor program is facing potential cost overruns, design issues and schedule delays in the Missile Defense Agency's accelerated development of a new weapon system intended to shield the United States from North Korean and Iranian intercontinental ballistic missile attacks. These are key findings of the most detailed public audit to date of the NGI program, a 48-page Government Accountability Office report on the Pentagon’s ambitious program to field by 2028 a follow-on to the Ground-based Interceptor that...