Pongo, produce any document or proof of any kind that the US actually blocked the sale.
Second, like I said, the Canadian navy might have thought about it, considered it, studied it, drawn posters!!!....thats got ZIP to do with the fact the in the end, it would not have EVER happened. They would have been too expensive, and we had no requirement for them.
Canada's navy is commited to its NATO responsibilites to ASW duty in the North Atlantic, thats what we have been doing since 1945, and we have *no* requirement for a SSN sub. Keeping track of Soviet SSBNs we left to the USN, we didn't have the $$$ to do it, and we are not about to start now, with the cold war being over for a decade.
Militaries "study" possible procurements all the time, that doesn't mean jack. We studied all kinds of things that in all likelyhood we never would have bought, and thats especially true for Canada, with its limited defence dollars. Im sure somwhere you can find a DoD "study" on Canada procuring a CV, but that aint going to happen either.
It took us 3 governments and 12 years to replace HELICOPTERS for the navy, where have you been?