Biden and Xi agree on human control over nuclear weapons in Lima meeting

U.S. President Joe Biden and Chinese President Xi Jinping agreed that humans should control decisions about nuclear weapons, not artificial intelligence. This agreement was made during a meeting in Lima, as both leaders emphasized the importance of careful consideration of AI risks in military use. This marks a new development in U.S.-China discussions on nuclear arms and AI, areas where progress has been limited. The U.S. has been urging China to engage in nuclear arms talks, which have stalled despite some recent exchanges. China's nuclear arsenal is growing, with estimates of 500 operational warheads, potentially increasing to over 1,000 by 2030. The U.S. and Russia have larger arsenals, with 1,770 and 1,710 warheads, respectively.