Blinken's China visit plagued by 'mutually incompatible intentions'

US-China relations are fraying again, as America's top diplomat touches down for a three-day visit. The US is pressuring China on a variety of prickly issues, including arms for Taiwan, and support for Russia's war on Ukraine. The Economist's Beijing bureau chief David Rennie speaks with The World's Marco Werman about the obstacles hamstringing negotiations.