Why an NHS-style system is not realistic here in the United States:

The British are often held up as the standard to which we should aspire. But we don’t live under a British style of government. We live under a government that’s truly government of the people, by the people, for the people. And what the people want, the people get . . . In England, the government only pays for colonoscopies to check for colon cancer if there are symptoms suggestive of cancer or a family history of colon cancer. In the United States, the Medicare pays for a colonoscopy every ten years for everyone over 50, regardless of symptoms or risk . . .In England, mammograms are only covered for women between the ages of 50 and 70, and then only every three years. In the United States, we pay for mammograms beginning at age 40, yearly, and with no upper age limit. We just don’t have the heart for rationing that they have in other countries.