A test of the Patriot Advanced Capability-3 air and missile defense system today resulted in a successful intercept of a jet aircraft emitting radar-jamming signals, the Army announced. An attempted intercept of a ballistic missile, however, was unsuccessful, the service said. The test was held at the Army's White Sands Missile Range, NM. Results were based on preliminary data. The test objective was to "simultaneously engage with two PAC-3 missiles a threat-representative theater ballistic missile and a remotely piloted jet...