Ahead of next month’s expected summit between US President Donald Trump and Chinese leader Xi Jinping in Washington, a low profile US regulatory agency has opened a new front in the technology battle between the world’s two superpowers, even as it attempts to avoid sabotaging the vital high-stakes meeting. The latest action by the Federal Communications Commission (FCC) in July saw it advance stringent bans on new Chinese robots and power inverters. The move came after months of FCC measures...