http://imdb.com/title/tt0214730/
If you're interrested in the drug history of the US over the past 100 years watch this. I found it pretty entertaining and interresting.
On an other note, i live in the Netherlands and here "softdrugs" (hash, weed, shrooms etc.) are "legal" and i must say thats pretty cool. It's not like everyone will turn into a useless junkie when you legalize it.