There was a time not long ago when the use of marijuana was deemed completely illegal, and judged morally reprehensible by a large proportion of the population. In fact, marijuana is even now a Schedule I controlled substance per the DEA, a category that includes heroin, LSD and mescaline! The DEA defines Schedule I drugs as having these characteristics: The drug or other substance has a high potential for abuse, it has no currently accepted medical treatment use in the U.S., and it has a lack of accepted safety for use under medical supervision. For comparison, methamphetamine, morphine and fentanyl are Schedule II.

