As the Department of Transportation begins the process of overhauling the country's air traffic control system — a $12 billion undertaking — there are already plans to integrate artificial intelligence into it in the future. Addressing fears that AI is meant to completely replace air traffic controllers, Transportation Secretary Sean Duffy told CBS News, "that's not gonna happen."  "AI is a tool, but we do not replace humans in how we manage the airspace," Duffy said. "Am I gonna replace a