Newly released documents reveal two scientists who worked at a high-security infectious disease lab in Winnipeg provided confidential scientific information to China. Both scientists were fired back in 2021, but for years the exact reasons why had been a mystery. The CSIS documents now reveal that one of the scientists was “a realistic and credible threat to Canada’s economic security.”

Senior parliamentary reporter, Steven Chase explains who these scientists are and the information they were sharing, foreign interference and why the government took so long to release the documents.

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