The Americans still believe the 19 hijackers came from Canada. What's your point?
That some Americans may be ignorant of the facts?
Quite Frankly, these border controls have been brutal for both countries. From What I am hearing, you can pick your spot when you want to Park Your Car in Niagara Falls.
If you want to get into another discussion on Islamic Terrorists, you have to wonder why we didn't speak up when the US, Pakistan and Saudi Arabia were funding, backing and training them...