In New York, the world's two dominant artificial intelligence powers sat down for eight hours and emerged with something rare: a shared acknowledgment that the race to build transformative technology carries risks neither nation can manage alone. US Treasury Secretary Scott Bessent and China's Vice Premier He Lifeng proposed a formal notification channel — a kind of hotline for the AI age — designed to surface national security threats before they spiral beyond reach. The meeting, held ahead of a Trump-Xi summit, did not resolve the deeper tensions over trade, chips, or critical minerals, but