The New York senator said her plan would require every American to purchase insurance, either through their jobs or through a program modeled on Medicare or the federal employee health plan. Businesses would be required to offer insurance or contribute to a pool that would expand coverage. Individuals and small businesses would be offered tax credits to make insurance more affordable.

One basic problem with nationalized health care is that it makes medical services seem free. That pushes demand beyond supply. Governments deal with that by limiting what's available.

That's why the British National Health Service recently made the pathetic promise to reduce wait times for hospital care to four months.

The wait to see dentists is so long that some Brits pull their own teeth. Dental tools: pliers and vodka.

One hospital tried to save money by not changing bed sheets every day. British papers report that instead of washing them, nurses were encouraged to just turn them over.

Government rationing of health care in Canada is why when Karen Jepp was about to give birth to quadruplets last month, she was told that all the neonatal units she could go to in Canada were too crowded. She flew to Montana to have the babies.

"People line up for care; some of them die. That's what happens," Canadian doctor David Gratzer, author of The Cure, told "20/20". Gratzer thought the Canadian system was great until he started treating patients. "The more time I spent in the Canadian system, the more I came across people waiting. … You want to see your neurologist because of your stress headache? No problem! You just have to wait six months. You want an MRI? No problem! Free as the air! You just gotta wait six months."