Maine paper pushes single-payer

This isn't quite an endorsement of single-payer, but it's pretty close. The Bangor Daily News evidently has a readership close enough to Canada that they're not fooled by the propaganda slurring Canada's system. The editorial reads:

Much of American health care is already run quite satisfactorily on a single payer basis: Medicare, Medicaid and the veterans’ health system.

Government run health plans, usually single payer plans, are good enough for Canada, Britain, France, Denmark, Sweden, Germany, Australia, New Zealand and most other developed countries. Why can’t they even be considered and debated by candidates for the U.S. presidency?