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LSD was classified as a Schedule 1 controlled substance by the U.S. Drug Enforcement Administration more than 40 years ago — giving it an official status of a dangerous, illegal drug with no accepted medical use. But a growing group of experts is now promoting the use of such psychedelics in small, controlled amounts as a routine, therapeutic treatment. 

Micah Ohlman reports for the KTLA 5 News at 10 on May 22, 2017.