I saw countless photos of how easy it is to slip over the border......walk in a park really.
There's one East/West road that I saw that comes within a few hundred yards of the Canada/US Border. It's literally nothing to be let out of a car at a number of points, walk a few hundred yards and guess what? In the United States of America without anyone knowing.
It's been that way for forever. Think the terrorists don't know that? Of course they do (and you do too of course...) why would these terrorists go train in the Middle East then go back to Canada? Because it's so easy to cross over to the US and they know the security is beefed up at our airports and southern border.....