Given what happened during Prohibition, that will NEVER happen. For one thing, it would require another Constituional amendment, and we know how hard it is to get another Amendment on the books....
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Would it?
All it would take would be congress amending the Controlled Substances Act of 1970 and its over.
THe CSA of 1970 exempted alcohol and tobacco from the definition of controlled substances... Tobacco and alcohol are exempted from drug scheduling, despite their detrimental impacts on individual health and society as a whole, due solely to economic reasons.
No constitutional amendment needed.
HAHAHAHAHAHAHAHAHA
What makes you think they'll need another Constitutional amendment? They haven't needed one for the war on drugs. In what way is alcohol any less dangerous a drug than marijuana?
The only reason we had a Constitutional amendment back in the day is because people of the time were capable of actually reading and understanding the Constitution. After a hundred more years of public education, that particular problem has been eliminated.