Friday, May 18, 2001 CHANGE OF TUNE ON DRUG POLICY? Los Angeles Times By Ethan Nadelmann Is there any chance that President Bush could pull a "Nixon goes to China" on drug policy? Don't laugh. It's possible. On Monday, when the Supreme Court ruled against the medical marijuana buyers' clubs, Justice John Paul Stevens noted that candidate Bush had supported state self-determination on medical marijuana use. And last January, Bush said: "I think a lot of people are coming to the realization that maybe long minimum sentences for first-time users may not be the best way to occupy jail ...