28 states seek to expand the role of nurse practitioners

With a looming shortage of primary care doctors, 28 states are considering expanding the authority of nurse practitioners. These nurses with advanced degrees want the right to practice without a doctor's watchful eye and to prescribe narcotics. And if they hold a doctorate, they want to be called "Doctor."

For years, nurse practitioners have been playing a bigger role. With 32 million Americans gaining health insurance within a few years, the health care overhaul is putting more money into nurse-managed clinics.

Newly insured patients will be looking for doctors and may find nurses instead.

The medical establishment is fighting to protect turf. In some statehouses, doctors have shown up in white coats to testify against nurse practitioner bills. The American Medical Association says a doctor shortage is no reason to put nurses in charge and endanger patients.