WSJ

Elderly Americans are turning out in droves to fight ObamaCare, and President Obama is arguing back that they have nothing to worry about. While claims about euthanasia and "death panels" are over the top, senior fears have exposed a fundamental truth about what Mr. Obama is proposing: Namely, once health care is nationalized, or mostly nationalized, rationing care is inevitable, and those who have lived the longest will find their care the most restricted.

Far from being a scare tactic, this is a logical conclusion based on experience and common-sense. Once health care is a "free good" that government pays for, demand will soar and government costs will soar too. When the public finally reaches its taxing limit, something will have to give on the care and spending side. In a word, care will be rationed by politics.

Yes, the U.S. "rations" by ability to pay (though in the end no one is denied actual care). This is true of every good or service in a free economy and a world of finite resources but infinite wants. Yet no one would say we "ration" houses or gasoline because those goods are allocated by prices. The problem is that governments ration through brute force—either explicitly restricting the use of medicine or lowering payments below market rates. Both methods lead to waiting lines, lower quality, or less innovation—and usually all three.

The political and fiscal pressure to further ration Medicare would increase exponentially if government is paying for most everyone's care. The better way to slow the growth of Medicare is to give seniors more control over their own health care and the incentives to spend wisely, by offering competitive insurance plans. But this would mean less control for government, not more.