"Ahh yes, lets make it illegal. There is a ton of evidence that waging a war on drugs works, I'm sure of it."
The so called War on Drugs was never fought to win. From it's very inception, the sale of drugs has been used to finance everything from wars to whole banana republic nations. It was used to create jobs and feed the starving in places with no other viable cash crop.
IMHO, if there were really a "War on Drugs" being fought to win, there would be a few changes in tactics and strategies such as;
1st and foremost) Get rid of Federal prohibition on Marijuana. It's silly. Let the states legalize it at their own will just like alcohol and let the FDA regulate it and tax the piss out of it.
2) Dealing or trafficking in illegal narcotics would be a capital offense.
3) Cut off all funding and access to American Companies and Banks to foreign nations with illegal drug exports.
4) Penalties for drug users have got to be strengthened enough to truly give an incentive to stay away from the stuff.
5) Pharmaceutical companies and 'Script Docs need to be held accountable. But that's a whole other part of the same conversation.