A lot of people seem to have especially strong opposition to requiring people to carry health insurance. Opposition based on principal I understand. It's just one more governmental encroachment on individual liberty. But from a practical standpoint, I don't really see why this is such a big deal (IMO the public option is a far worse idea). What is the difference between a law that mandates you buy health insurance and a law that mandates you pay taxes to cover your own health insurance (and likely other's too)?