The next generation of U.S. missile defense won't be run by generals in command bunkers studying wall-sized screens. That planned system -- dubbed Golden Dome -- must be run by machines, a former senior Pentagon official asserts. Defending the homeland against hypersonic salvos and massed missile attacks requires command and control systems that are fully autonomous, making decisions without human input, says Lisa Porter, former deputy under secretary of defense for research and engineering. “If you look at the timelines...