Endorsing single-payer

How many newspapers have endorsed single-payer healthcare?

This is from today's St. Louis Post-Dispatch's editorial on Bush's state of the union:

"The president showed an admirable willingness to address the nation's growing health insurance crisis. But his diagnosis of what has caused the problem is wrong, thus his prescription to fix it is wrong, too....

"That leveling would be accomplished not by improving coverage for people buying insurance on their own, but by making it more expensive for companies to provide adequate insurance to their workers. That's a step in the wrong direction. The right direction is toward a single-payer national health care plan."