It has been traditionally believed that any U.S. Central Intelligence Agency activity in Canada would be undertaken with the "general consent" of the Canadian government, and through the 1950s information was freely given to the CIA in return for information from the United States.[1][2] However, traditionally Canada has refused to voice any anger even when it was clear that the CIA was operating without authorisation.[3]
Proponents have noted that Canada was vital to CIA operations as it "physically occupied the territory between the United States and the Soviet Union.[4] However, on May 28, 1975 Solicitor General Warren Allmand directed the Royal Canadian Mounted Police (RCMP) to begin investigating the levels of CIA involvement in Canadian affairs.[5]
Canada continues to cooperate with the CIA today, allowing ghost planes to land and refuel in Canada, en route to delivering prisoners to suspected CIA black sites.[6] The Canadian counterpart of the CIA is the Canadian Security Intelligence Service (CSIS) and its agency heavily cooperates with the CIA.
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