For pete's sake, Cass. Don't you ever watch FOX news or are you too busy watching MSNBC with Joe??? You 2 are probably the only ones, judging by the network ratings. Anyway, here are links to 2 articles to answer your question "why don't Canadians flock to the south to buy prescription drugs?" Kind of suggests that they do.

http://www.ncpa.org/pub/ba323

http://reason.com/blog/2010/07/12/how-about-those-cheap-canadian