The Case Against Legalization
First, the medical argument. No one disagrees that many controlled substances have legitimate and completely legal medical applications. But there are various degrees of control, based on the degree of risk involved. In an ideal world, the risk would be determined on scientific grounds. In the real world, cultural and political factors also matter. The U.N. conventions reflect that; they can be amended in response to a consensus shift concerning the appropriate degree of control over given substances....