SummaryUS, Chinese experts propose red lines around nuclear systemsCalls include human-only military decisions and AI incident hotlineRecommendations come ahead of planned US-China AI talksAI rivalry expands from chips and models to strategic stabilityBEIJING, Sept 17 (Reuters) - An AI system that interferes with a nuclear command network or launches a military cyber operation could leave Washington or Beijing with minutes to decide whether the ​other government attacked, according to U.S. and C...