The problem with private insurance/ healthcare corporations is that they have a motive for profit. Money is the underlying goal when it should be the treatment of patients. The corporations can give two shits about the people they decline, but this is what happens when you let a private company do what the government should be doing. A great example is the "kids for cash" scandal in Wilkes-Barre, Pennsylvania. A 'for profit' juvenile detention center was making money off of the kids it locked up. Many of the teens were held months longer than they were sentenced. The two local judges had been bribed by the company to rule harshly on juvenile defendants in order to boost attendance. The judges also gave the company power to decide when the children were ready to be released. Crimes like these are why we shouldn't give private corporations duties that the government should be performing.
On the note of the health care system in Canada, it is made out to be much worse than it actually is. My friend's mother was a nurse in Canada. She's said that the long lines and waiting lists are grossly exaggerated in the states, mainly due to the insurance companies propaganda machines.

Hell, in the UK our own press exaggerates the waiting lists, so I hate to think what it's like through the Fox Filter-o-matic (patent pending).

I do that with reagan biographies. and really bad cds.

I work at Best Buy and I always take Against Me! cd's or cd's of other bands I like and I put them in the front display whenever I walk past the music section.