North Korea has brought America and China closer
Next it will push them apart

Murderous, thin-skinned and in possession of nuclear weapons, the North Korean dictator, Kim Jong Un, has one good deed to his name: he has united America and China. Max Baucus, America’s ambassador to Beijing until January 2017, recalls the Chinese president, Xi Jinping, privately expressing “disgust” at Mr Kim’s reckless pursuit of…