A new report on the Defense Department's overhead persistent infrared architecture offers insight into the Pentagon's plans for future space-based missile tracking and warning capabilities -- a response to lawmakers' calls for a clear strategy that addresses concerns about duplication and oversight across the enterprise. Notably, the report identifies the Missile Defense Agency as the lead for the Hypersonic Ballistic Tracking Space Sensor program after attempts by DOD to shift the program under the Space Development Agency's purview. It also...