Well, Afghnistan may have something there...it is not a bad thing to grow cannabis/ hemp, what's important is HOW to use it ! Hemp can be used to make paper (better than cutting down trees and deforestaion as it happens now), it can be used as medicine, it is very powerful if used the right way for the right disease, it can be used to make exceptionally strong rope, too.
Unfortunately people use it wrong...but if that changes, a lot of things will improve for a lot of people!