WashPost: It's Time to Legalize Drugs

Drug users generally aren't violent. Most simply want to be left alone to enjoy their high. It's the corner slinger who terrifies neighbors and invites rivals to attack. Public drug dealing creates an environment where disputes about money or respect are settled with guns...

Cities and states license beer and tobacco sellers to control where, when and to whom drugs are sold. Ending Prohibition saved lives because it took gangsters out of the game. Regulated alcohol doesn't work perfectly, but it works well enough. Prescription drugs are regulated, and while there is a huge problem with abuse, at least a system of distribution involving doctors and pharmacists works without violence and high-volume incarceration. Regulating drugs would work similarly: not a cure-all, but a vast improvement on the status quo.