Using chemicals to control bugs or mold is common among commercial cannabis growers. But with no federal oversight, experts are concerned growers may be using dangerous pesticides. Ted S. Warren/AP hide caption

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Concern Grows Over Unregulated Pesticide Use Among Marijuana Growers
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Demonstrators snarl traffic as they try to block an entrance to the Holland Tunnel during a solidarity protest Wednesday in New York City. Michael Abbott/Getty Images hide caption

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James Beard-award winner and Top Chef Masters star Jen Jasinski recently opened a seafood restaurant in Denver called Stoic and Genuine that features a raw bar. June Cochran/Stoic and Genuine hide caption

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Top Chefs Discover Denver's Fast-Growing Restaurant Scene
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With the Colorado state capitol in the background, Cannabis Cup attendees dance and smoke pot at the annual 4/20 marijuana festival in Denver. Brennan Linsley/AP hide caption

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It's 4:20 On 4/20: Denver Hosts The Cannabis Cup Today
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