maxstep wrote:I was just wondering if anybody knows a specific reason why we had to have a constitutional amendment to ban alcohol in the twenties, but no such amendment exists in banning illegal drugs today.
It's because the Acts that made these drugs effectively illegal weren't like prohibition outright banning the production and sale of the substance (except for medical purposes), but were done up as tax acts to regulate them. The Harrison Narcotics Tax Act of 1914 stated "An Act To provide for the registration of, with collectors of internal revenue, and to impose a special tax on all persons who produce, import, manufacture, compound, deal in, dispense, sell, distribute, or give away opium or coca leaves, their salts, derivatives, or preparations, and for other purposes." This was later amended in 1924 to disallow all importation of cocaine/opium.
Similarly in the Marihuanna Tax Act of 1937 was supposed to regulate the production and selling of cannabis, but as the Federal government did not produce the necessary marijuana tax stamps even though it was technically legal, effectively it made it illegal.
These acts were eventually superseded by the Controlled Substances Act of 1970 after Leary v. United States deemed (at least the Marihuanna Tax Act) unconstitutional.
The overriding reason why these substances didn't need a constitutional amendment and instead used a slippery slope of acts to prohibit them, is that unlike alcohol which was deemed part of the culture, drugs such as cocaine (blacks) opium (Chinese) and marijuana (Mexicans) were portrayed in the yellow journalism of the day as horrors brought in from these alien cultures to subvert the common white male and steal their women. Thus, drug prohibition laws are interlaced with racism and fear of "others", while in fact it had to do more with commercial interests of the elite. With such fear campaigns having gone on for decades, it became suicidal of any politicians in later years to speak out against such unconstitutional laws as you would be seen as soft on drugs.