To practice harm reduction relative to drugs implies (1) acceptance of non-harmful drug use, and (2) continued use of drugs, even by the addicted, with the goal of providing healthcare, clean needles, and other services to intravenous and dependent drug users (Nadelmann et al., 1994). In other words, harm reduction suggests--and begins the path towards--legalization or at least decriminalization of drug use. How do harm reduction and drug legalization play within the four basic models?...