In the early 1980s, not many people had travelled into China, let alone a Black American diplomat with a multiracial family of his own. Charles Ray was first posted to Guangzhou in the south, and Shenyang in the northeast — both major trading posts today, but relatively unknown when he lived there. Later serving as America's top envoy to Cambodia and Zimbabwe, he speaks about culture and identity, and the challenges for two nations shaping the world.