Lockheed Martin and Rockwell Collins this week each won contracts worth about $80 million to design a new system to allow U.S. Strategic Command to launch intercontinental ballistic missiles from an aircraft if ground control stations are unusable. The Air Force plans to field a modular nuclear command-and-control system that connects to the Navy's E-6B by 2024, the service said in a press release Tuesday. The winning design will be employed before the current fleet of nuclear missiles begins retiring...