For the record, that is not a statement by the Bank of Canada but an article from their periodical Bank of Canada Review*, written by David Laidler who is described at the bottom as follows:
David Laidler is Fellow in Residence at the C. D. Howe Institute and Professor Emeritus at the University of Western Ontario.*Bank of Canada Review: "A quarterly publication featuring articles related to the Canadian economy and to central banking."
Furthermore, the fundamental truth that American policy makers are not interested in monetary union has not been challenged on this thread with any evidence remotely like the one I've posted. All I've seen is idiotic justifications for paranoia.
One other element to consider is that in order for monetary union to take place, all 3 currencies - Canadian Dollar, US Dollar and Mexican Peso would have to be on equal footing, including part of continuous linked settlement systems. The Mexican peso is not.
The European experience is also telling - it took nearly 10 years for it to occur successfully, and a lot of money spent on infrastructure, public awareness and so on.
To conclude - there is no will at present to do this, there are no plans in place to do this, and it could not be achieved in the dead of night through some conspiracy of governments.
Ivan