The other day, I met a young, 17-year-old Syrian man who said he walked across in British Columbia. Now he's been admitted to an exclusive private school and that sort of thing.
It's a big load to have to police the border in that way. I mean, everybody gets arrested when they cross.
I'm pretty sure the RCMP would tell you they'd rather not try to be immigration processors along the entire length of the border. It's a waste of resources.