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Mary Agnes Carey, senior correspondent with Kaiser Health News. She most recently served as associate editor for CQ HealthBeat, a daily report on health care policy. She has also served as Capitol Hill Bureau Chief for CQ.

Carrie Budoff Brown, Health Care reporter for Politico.

Dr. Arthur Garson, executive vice president and provost of the University of Virginia and chair of the American College of Cardiology's health reform working group. He is a practicing pediatric cardiologist with a long interest in the uninsured.

Dr. Greg Bentz, chief medical officer at a community hospital, formerly a family physician in private practice.

Steven Levitt, professor of economics at the University of Chicago, recipient of John Bates Clark Medal and co-author of "Freakonomics."

Stephen Dubner, former writer and editor at "The New York Times Magazine"; author of "Turbulent Souls," "Confessions of a Hero Worshiper," "The Boy with Two Belly Buttons"; and co-author of "Freakonomics."

Dr. Peter Frumhoff, a global change ecologist and the Director of Science and Policy at the Union of Concerned Scientists (UCS), and Chief Scientist of the UCS Climate Campaign. He was a lead author for the Nobel-Prize winning United Nations Intergovernmental Panel on Climate Change.