China on Tuesday expelled a Canadian diplomat in Shanghai in a tit-for-tat response after Ottawa told a Toronto-based Chinese diplomat to leave the country, escalating already tense bilateral relations amid concerns about Chinese influence in Canada. Canada on Monday expelled Chinese diplomat Zhao Wei after an intelligence report accused him of trying to target the family of Conservative MP Michael Chong, who has been critical of China's treatment of its Uyghur Muslim minority. "We will not tolerate any form of foreign interference," Foreign Minister Melanie Joly said on Monday. China has told Jennifer Lynn Lalonde, consul of the Canadian consulate...