A.I. researcher resigns with stark warning for tech companies, new airport gate access

Going to the gate without a plane ticket? At the Phoenix-Mesa Gateway Airport, a new program allows eligible TSA PreCheck members to request a Gateside Pass, clear security without a ticket, and accompany friends or family to the gate. We'll explain how it works, who qualifies, and why an airport tradition that largely disappeared after 9/11 is returning. Plus, the rapidly changing world of AI, where the technology is headed, and how it could reshape the way we work and live.