Precisely, if the Americans had their own reasons, those reasons had to do with your cooperation in that common fight you lead with intelligence authorities in the U.S. In this case, these reasons relate to a Canadian citizen, then to a person of interest for you.
In such circumstance, would it not be normal that intelligence authorities in Canada be informed of the exact reasons why intelligence authorities in the U.S. decided to send someone to a country where he would be exposed to torture?