Mirror, mirror ... on the wall, who are the healthiest Americans of all?

The Dartmouth Atlas of Health Care puts a human face on how this country's precious health care resources are divvied up--market by market by market. Dr. John Wennberg spent 30 years researching the project, and the end result may profoundly influence how patients are treated in the future. But in holding up a mirror to the American health care system, does the atlas pose more questions than it answers?