BBC News : Prime Minister Justin Trudeau has fired Canada's ambassador to China, John McCallum. It follows controversial comments Mr McCallum made about an extradition case involving a senior executive from the Chinese telecoms giant Huawei. Mr Trudeau said in a statement he had asked John McCallum to step down, but did not offer a reason. The detention of Meng Wanzhou, at the request of the US, angered China and soured Canada's relations with Beijing. Ms ...