Why did Canada take so long to expel China’s diplomat? It’s our trade relationship

News Snapshot:

Open this photo in gallery: Chinese President Xi Jinping shakes hands with Canadian Prime Minister Justin Trudeau during the 2016 Group of 20 Summit in China.Damir Sagolj/Reuters Margaret McCuaig-Johnston is a senior fellow at the Graduate School of Public and International Affairs at the University of Ottawa and a former senior official in Canada’s Department of Finance. One would have thought that Zhao Wei, a Chinese diplomat and suspected intelligence officer, would have been sent home by the evening the news broke that he was part of an effort by Beijing to target MP Michael Chong’s family – or better...