The CIA perhaps as an intelligence organization, but the FBI (as a US federal body) does not have jurisdiction in other countries. In other words, it would be like a New York cop flying to Berne and arresting a robber.Having lived on both sides of the border, i can tell you there are lot's of reasons that the FBI would love to be able to walk on over to Canada and perform arrests (lax Canadian marijuanna laws for example), but just can't.
I've seen other movies where this has happened. It seems that whenever american law enforcement want to fight crime in Canada, the borders magically dissapear. In Die Hard: With a Vengeance the bad guys are chased by the US police over the border and the chase continues into Canada without skipping a beat. :laugh: