|Wednesday, Oct 3, 2012 - 7:00 AM
"The Pot Republic"
FRONTLINE's primetime monthly newsmagazine returns with three new stories, leading with a timely report from the frontlines of marijuana legalization in California. The bulk of the marijuana consumed in the United States used to come across the border from Mexico, Canada and elsewhere. Now, more than half of it is believed to be home grown in California, where an enormous black market has emerged under the cover of the state's medical marijuana law. D