Speculation is growing about the possibility that the U.S. Drug Enforcement Administration (DEA) will review by summer its “Schedule I” designation of marijuana as equal to heroin among the world’s most dangerous drugs. Very few Americans know of or understand the DEA’s drug-ranking process, and a review of cannabis’s history as a Schedule I drug shows that the label is highly controversial and dubious. Disgraced Attorney General John Mitchell of the Nixon administration placed marijuana
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