The statistics are bleak and we are pursuing typically myopic policies in Afghanistan. Hitchens (whose writing I think is superb) makes a great case for a different approach.

"in the short term, hard-pressed Afghan farmers should be allowed to sell their opium to the government rather than only to the many criminal elements that continue to infest it or to the Taliban. We don't have to smoke the stuff once we have purchased it: It can be burned or thrown away or perhaps more profitably used to manufacture the painkillers of which the United States currently suffers a shortage. (As it is, we allow Turkey to cultivate opium poppy fields for precisely this purpose.)"