Inside California's Green Rush

Preview: Season 29 Episode 17 | 2m 38s

Sgt. Randy Johnson used to bust pot growers. Now he works with them. With more than a third of all states now trying some form of legalization and decriminalization, and several California counties attempting to openly regulate pot production, FRONTLINE and the Center for Investigative Reporting investigate the country's oldest, largest and most wide-open marijuana market in "The Pot Republic."

Aired: 07/26/11

Rating: NR

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