The Army's Patriot Advanced Capability-3 missile is scheduled to return to the air this weekend, the service said today. The Army hopes two PAC-3 missiles can shoot down a Hera target missile and an older Patriot missile "configured as a target," the service said in a statement. The test, to be held on March 31 at White Sands Missile Range, NM, will put a PAC-3 in the air for the first time since last October, when the Army successfully engaged...