legalization of marijuana legalization of marijuana

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

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Marci Krivonen

Getting High Safely: Aspen Launches Marijuana Education Campaign

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Nebraska and Oklahoma say Colorado's marijuana law is unconstitutional, in a challenge to the law in the Supreme Court. Earlier this month, visitors from Texas smell marijuana at the Breckenridge Cannabis Club. Brennan Linsley/AP hide caption

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Brennan Linsley/AP

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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Brett Myers/Youth Radio

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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Kirk Siegler/NPR

Colorado's Pot Industry Looks To Move Past Stereotypes

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Early results showed more than a 2-1 lead for a measure to make recreational marijuana use legal in Washington, D.C. A sign promoting the initiative is seen on a corner in the Adams Morgan neighborhood Tuesday. Allison Shelley/Getty Images hide caption

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Allison Shelley/Getty Images

Workplace drug testing for marijuana may need updating in light of changing laws, a case before the Colorado Supreme Court suggests. Kai-Huei Yau/MCT/Landov hide caption

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Kai-Huei Yau/MCT/Landov

Colorado Case Puts Workplace Drug Policies To The Test

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Outside New York City Hall, a policeman watches a protest against racial disparities in marijuana arrests. The majority of those arrested are black or Latino, even though those groups are not more likely to smoke pot. Andrew Burton/Getty Images hide caption

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Andrew Burton/Getty Images

Brooklyn DA Shifts Stance On Pot, But That Won't Impact NYPD

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C. Nash smokes after possession of marijuana became legal in Washington state on Dec. 6, 2012. Ted S. Warren/AP hide caption

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Ted S. Warren/AP

Evidence On Marijuana's Health Effects Is Hazy At Best

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The teenage years are the last golden opportunity to build a healthy brain, researchers say. So smoking pot might not be so smart. Tomas Rodriguez/Corbis hide caption

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Tomas Rodriguez/Corbis

Marijuana May Hurt The Developing Teen Brain

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The legalization of marijuana could dry up a revenue stream for police, according to reports. Here, two men share a water pipe underneath the Space Needle shortly after a law legalizing the recreational use of marijuana took effect in Seattle in 2012. Stephen Brashear/Getty Images hide caption

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Stephen Brashear/Getty Images