The Pentagon's push to develop a new interceptor for the Ground-based Midcourse Defense system would require the Missile Defense Agency to swap out existing antennae for new sensors optimized for a notional Next Generation Interceptor at six sites around the world with facilities that play a pivotal role guiding exo-atmospheric kill vehicles through space to intercept enemy warheads. MDA, as part of the controversial effort to commence an NGI program to replace the terminated Redesigned Kill Vehicle project, is conducting...