Preview: The Pot Republic

Preview: Season 29 Episode 17 | 30s

More than half of the marijuana consumed in the United States 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. FRONTLINE and The Center for Investigative Reporting team up to investigate the country's oldest, largest, and most wide-open marijuana market.

Aired: 07/26/11

Rating: NR

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