(Editor's Note: This story has been updated to reflect that the Army had a goal to deploy a prototype Long Range Hypersonic Weapon battery by the fall of 2023, not 2018 as originally reported.) SIMI VALLEY, CA -- The Defense Department -- after 18 months of problems with both the two-stage missile and the ground launcher for the U.S. military's premier long-range hypersonic strike weapon -- has determined the original development path is no longer viable and remedial work...
