When you present your passport at teh border, the computers will flag you then, and you’ll be stopped.
Either that, you you can go out in the wilderness and cross into Canada without anyone knowing, It is a long border and I'm sure there are many, many points you can cross over easily as you can drive a car. I would not even have to pop my Blazer into 4 wheel drive. Of course, the point is, don't get caught. Here is an interesting YouTube video:
http://www.youtube.com/watch?v=xKp9F3VdQAU&feature=related
I got a huge laugh about his statement of hearing gunfire coming from the U.S. side. B-)
Or... You can crossover into Canada or Mexico and when you get caught, renounce U.S. Citizenship and then try crossing back into the U.S. as a illegal alien, you will get treated royally. B-P
Seriously, the tragedy is, we are becoming the "Evil Empire" here, something that I pondered as far back as 1983.
Yes, I was at the Canadian border. By treaty, the whole length is kept clear, I think it’s 20 meters wide. There are virtual highways through the pines for foot traffic here and there.
It’s hard to get an illegal job in Canada and Mexico, though.
The way this proposal looks, you probably won’t know you have been flagged unless you do something major and willfully taxwise. You go to get on the plane at LAX to head to Argentina and pop, you are busted!