A key Army panel is slated to discuss the costs for upgrading the venerable Patriot system's radar this week, as proposed near-term investments exceeding $1.5 billion on the legacy technology raise questions about the service's commitment to finding a replacement. Officials said a meeting of the Army Requirements Oversight Council is set for April 14 about the Lower Tier Air and Missile Defense Sensor and its way ahead toward a milestone A decision, the most preliminary in a series of...