What is the beef between China and Canada right now?

China and Canada are in the midst of a diplomatic tit for tat, with Canada expelling a Chinese diplomat based there, and China following in kind. But what exactly is going on? Is Canadian Prime Minister Justin Trudeau just getting revenge for his embarrassing telling off by Chinese President Xi Jinping at the G20 summit last year? Today I’ll explain, in simple terms, what is up. This is Reports on China, I’m Andy Boreham in Shanghai. Let’s get reporting! #canada #china #drama