Putin's bro-five with Saudi crown prince reveals the G20's diplomatic dance

It’s the bro-five. That moment when two like minded members of a brotherhood come together, outstretched hands colliding in a clasp somewhere between a high-five and a handshake.

If Mohammed bin Salman, the crown prince of Saudi Arabia, had any nerves about how he would be received at the G20 summit – his first major trip since being implicated in the murder of a dissident journalist - then Vladimir Putin’s warm but calculating greeting would have put him at ease.

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