Mr Donald Trump is about to make history by shaking hands with an adversary. Indeed, he will greet six of them at the same time. No breakthrough is likely.
Following the G-7 summit, Mr Trump will fly to Singapore to meet Kim Jong Un. Expect a triumph. Peace will be declared on the Korean peninsula. Those who think I am joking should mute the sound and study the body language. Then decide for yourselves whose company Mr Trump prefers - America's partners, or the most lethal autocrat on the planet. You can guess what a visiting Martian would say.