SCOTUS made it clear that alcohol prohibition was NOT legal unless a constitutional amendment were passed..
They held the same was true for pot.
The congress passed the Marijuana Stamp Act since they could not legally prohibit it.
The stamp act said cultivation, sale and transport was fine but you had to buy the tax stamps.
They issued a few stamps and then refused to ever issue any more! The whole scheme was a way to skirt the constitution.
Clarence Thomas says the above sentiments are accurate and true.
Sadly, some FReepers forget about the Constitution when it comes to pot.