Canadian and U.S. officials quietly held exercises last spring to practise dealing with worst-case nuclear scenarios — running through simulated attacks on both sides of the border, CBC News has learned. But a series of government officials, speaking to CBC News on background, confirmed the scenario was designed to test the reaction of officials to "a nuclear event." A spokesman for National Defence said there are contingency plans that cover "a wide range of scenarios involving attacks on Canada, including a missile attack." It is in the aftermath of a nuclear explosion, even a small one, that Canada is vulnerable. The unit would require help from the U.S. National Guard in the event of a nuclear attack.

Source: CBC News November 30, 2017 10:00 UTC