AI tech bros are warning AI will destroy us. Are they right?

Tech giants from OpenAI, Anthropic, and X have all warned in the same week that AI could threaten humanity itself, as former employees go public with their concerns. Geraldine Doogue and Hamish Macdonald ask foreign correspondent Anna Fifield if calls for regulation are credible, and if Donald Trump is even listening. Plus, how does China feel about AI? Models like DeepSeek have grabbed media attention, but internal voices have been raising concerns that widespread AI use could undermine the party line. Meanwhile, China and the U.S. vie for allies in the Pacific islands. Can America be taken seriously as a diplomatic force when they haven't…