An interceptor missile designed to destroy ballistic missiles in flight failed to launch during a planned test of the Bush administration's multibillion-dollar missile defense system, the Missile Defense Agency announced today. "Preliminary indications point to a fault with the ground support equipment, not the interceptor missile," the agency said in a statement. The agency suffered a similar failure during a Dec. 15 test when a "glitch" in the flight computer's software caused a flight abort order. Today's test was not...