Sanjay Gupta backs medical marijuana

CBS says Sanjay Gupta backs medical marijuana and apologizes for previous views

Sanjay Gupta America’s most prominent doctors says he has shifted his stance.

Dr. Sanjay Gupta, chief medical correspondent at CNN and a CBS News contributing medical correspondent, wrote a post today on CNN.com called, “Why I changed my mind on weed,” in which he describes his change of heart that occurred while filming a documentary, aptly titled, “Weed.”