What happens when the world’s two most dangerous humans meet?

We are about to find out. Vladimir Putin and Xi Jinping are going to get together for their 40th in-person chat Monday. The conversation, in Moscow, is scheduled to run until Wednesday.

Xi’s timing confirms the closeness to his Russian counterpart. The summit, for one thing, is being held much earlier than expected. The Wall Street Journal on the 21st of last month reported the pair might get together “in April or in early May.”