All that changed was the wholesalers took a whuppen from the federales. With the middlemen removed from the scene, folks like Capone could move ahead unhindered.
The big money was in distribution. When the government nannies stopped legal trade, they handed all of that nice, green money to folks like Capone. What a brilliant move! And now we're repeating that brilliance by giving money to people like bin Laden.
Someday you might be killed by a terrorist, but you can rest easy knowing that he couldn't score a spliff the night before he killed you.