Since the big comment subthread here is about the author's criminal history and what that means to society, I should probably comment on that issue too. I've lived in east Asia, and once upon a time, I thought that there was a generation of Americans who had all heard of the Opium Wars and understood the historical context of why several countries in that part of the world want nothing to do with their common people having access to most drugs. Harsh drug laws in some places--including the death penalty for what seems to Americans like dealing rather small amounts of drugs--is a reaction to a historical experience in which whole countries were ruined by foreign drug dealers (British imperialists trading in opium) and their local agents. I'm not personally in favor of the death penalty for all drug dealers, but I can empathize with (for example) a parent of a child who started using drugs who would want the child's dealer in prison for the rest of his life or even dead.
Of course we want to look to other countries for historical examples too. In Europe, where the historical experience was different, there has been some decriminalization, but very little "legalization" of drugs.
http://www.holland.com/us/tourism/article/dutch-drug-policy....
http://www.guardian.co.uk/commentisfree/2013/jan/03/dutch-dr...
http://www.virgin.com/richard-branson/time-to-end-the-war-on...
I am tentatively convinced that a national drug policy that focuses mostly on keeping users from harming other people and on helping users to stop using is perhaps a better national drug policy than harsh criminal penalties for dealing in drugs--in countries that have already established a drug-using culture. But east Asia, with very harsh drug laws and a culture of limited use, is doing well in human progress,
http://globalpublicsquare.blogs.cnn.com/2012/08/15/singapore...
http://www.economist.com/news/21566430-where-be-born-2013-lo...
so that policy choice has to be put in the mix too in evaluating what will work well as the United State reforms a national drug policy that everyone seems to decry.