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Marijuana in America: Colorado Pot Rush

No drug testing required

Working in Colorado's pot industry requires background checks by the state's Marijuana Enforcement Division but no drug tests are necessary.

CNBC and correspondent Harry Smith tell the story behind this controversial and stunning development and report on the exploding legal pot market. Watch Marijuana in America: Colorado Pot Rush on Feb. 26 at 10 p.m. ET

  • Harry Smith

    Harry Smith is an NBC News correspondent who came to NBC News as a correspondent for "Rock Center" with Brian Williams in July 2011.