Kurt Britz checks a driver's license at the 3-D Denver Discrete Dispensary on Jan. 1, 2014, the first day recreational marijuana sales were legal in Colorado. Possession remains illegal for those under 21 years old, and statistics show a widening racial gap in arrests for those offenses. Theo Stroomer/Getty Images hide caption

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As Adults Legally Smoke Pot In Colorado, More Minority Kids Arrested For It

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A budtender prepares an edible sale for a customer at LivWell Broadway in Denver. Craig F. Walker/Denver Post via Getty Images hide caption

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Two men inspect the goods at at Farma, a marijuana dispensary in Portland, Oregon. The state's first week of retail sales brought in an estimated $11 million, a trade group says. Josh Edelson/AFP/Getty Images hide caption

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Partygoers attend a Prohibition-era themed New Year's Eve party celebrating the start of retail pot sales, at a bar in Denver on Dec. 31, 2013. Brennan Linsley/AP hide caption

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Awesome Tips, Dude: Denver May Allow Pot In Bars, Restaurants

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Deuel County Sheriff Adam Hayward shows off a container of confiscated marijuana in Chappell, Neb., in July. Nikki Kahn/The Washington Post/Getty Images hide caption

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Nebraska Says Colorado Pot Isn't Staying Across The Border

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Officials in Aspen have put out a brochure on how to use marijuana safely and legally. Marci Krivonen hide caption

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Getting High Safely: Aspen Launches Marijuana Education Campaign

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Trimmers prepare the marijuana flower, or bud, to make it more appealing to consumers. They use scissors to snip off the leaves and stems. Brett Myers/Youth Radio hide caption

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With Harvest Season, 'Trimmigrants' Flock To California's Pot Capital

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Brooke Gehring, CEO of Patients Choice and Live Green Cannabis, stands in one of her company's grow houses in Denver. Kirk Siegler/NPR hide caption

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Colorado's Pot Industry Looks To Move Past Stereotypes

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