Raytheon says it has been picked by the Army to participate in the Lower Tier Air and Missile Defense Sensor competition, the first public word on the planned "sense-off" event at White Sands Missile Range, NM, this spring from either the government or industry in months. Raytheon, one of at least three companies expected to deliver a candidate sensor as a potential multibillion-dollar replacement contract for the Patriot radar, will proffer a clean-sheet radar design in a gambit to hang...