Oregon entered a new era with the legalization of marijuana for personal use two weeks ago.
This comes after years of wrestling with the nuances of medical marijuana, legal for years now.
Medical pot tends to exist as a parallel health care system, separate from the medical mainstream.
But one MD is all for marijuana as medicine... Dr. David Casarett is the author of Stoned: A Doctor's Case for Medical Marijuana.
He visits with details of the lengths he went to, to investigate marijuana's medical potential.