Zelizer : Very nervous about expanding government role in health care . He says Medicare is a strong example of government positively affecting health care . He says recipients rate it more highly than private providers . Zelizer : Over 40 million Americans rely on the program , along with their families .
Zelizer : Democrats nervous about expanding government role in health care . He says Medicare is a strong case of government positively affecting health care . He says recipients rate Medicare more highly than private insurance . Zelizer : Today 40 million Americans rely on the program , along with their families .