We have to tighten up the border. We're pretending that it's to keep mexican immigrants and CIA trained "Islamic" extremists out, but, just between you and me, our biggest problem is freedom loving traitors trying to escape.
A recent documentary highlights the problem:
Escape To Canada: The Movie
A different website promoting the underground railroad:
Escape To Canada
More on the Marc Emery story.

More on US Canada relations

DEA: DEMOCRACY ENDS IN AMERICA