John Oliver is raising new concerns about the rapid rise of artificial intelligence, warning that chatbots may be entering a dangerous phase, widely used, loosely regulated and still poorly understood. During a recent segment on  Last Week Tonight , Oliver argued that AI systems are operating with “the weakest guardrails” at a moment when adoption is accelerating, comparing the current landscape to the earliest days of aviation, when enthusiasm outpaced safety. AI Chatbots: Last Week Tonight