The Pentagon this week scrubbed a long-delayed, high-stakes hypersonic weapon flight test after discovering a faulty component during a pre-flight check of the joint Army-Navy program to develop an ultra-fast, maneuvering, intermediate-range offensive capability, setting in motion a review to resolve the root cause of the problem. On March 5, the Defense Department was preparing to execute Joint Flight Campaign-2 featuring the Army version of the prototype weapon launched at Cape Canaveral Space Force Station, FL, when the countdown was...