I find myself on the wrong side of the facts. Again. So says Paul Krugman:
Still, wouldn’t private insurers reduce costs through the magic of the marketplace? No. All, and I mean all, the evidence says that public systems like Medicare and Medicaid, which have less bureaucracy than private insurers (if you can’t believe this, you’ve never had to deal with an insurance company) and greater bargaining power, are better than the private sector at controlling costs.