I finished Richard Reeves' President Nixon: Alone in the White House. 
 The book has an excellent bibliographic essay at the end, written by 
Jonathan Cassidy, who assisted Reeves in his research.  Although there 
are a variety of gems in that essay, I would like to highlight something
 that Cassidy says on page 669, as Cassidy comments on a book about 
President Richard Nixon's drug policy:
"Michael Massing's The Fix
 (New York: Simon & Schuster, 1998) is an interesting look at 
American drug policy under Nixon.  On drugs, Nixon wasn't easy to 
stereotype.  Though he raged about government officials who were 
publicly soft on drugs, he drew fine distinctions that were lost on 
contemporary demagogues.  For example, in one memo he worried that a 
tough new law on pushers would be unfairly harsh to those who sold just 
to support their habit.  Massing's book shows that current policy makers
 could learn a lot from Nixon's realpolitik."
I don't know much 
about President Nixon's drug policy, but I think that any drug policy 
should be compassionate, yet tough.  Insofar as Nixon pursued that 
approach, I applaud him.
Many people whom I respect argue that the
 government should not have a drug policy, and that drugs should be 
legalized.  I'm hesitant to go that far, for I have problems envisioning
 marijuana and cocaine being sold at the local supermarket!  But I do 
recognize that there have been problems with the war on drugs: it has 
cost a lot, plus it has arguably been unfair, in that African-American 
drug abuse has been punished more harshly than white drug abuse.  
Moreover, there are people who have been stiffly punished for taking a 
puff of marijuana, and I have heard and read that this punishment can 
have long-standing effects.
I could say that drug policy should 
focus on treatment and rehabilitation more than punishment, but that's 
easier said than done.  The thing is, people have to want to 
recover before they recover.  I have heard in recovery groups that you 
can't make people recover.  But maybe it wouldn't do addicts harm at 
least to be exposed to a recovery program: to hear the view that 
recovery is positive, to be given a chance to share their problems with 
someone who is understanding, to listen to the stories of people who are
 trying to recover.  Hopefully, something positive would sink in.
Plus,
 do we want to take punishment off of the table?  I am reluctant to 
propose this, since drug policy may need a carrot and a stick.  I 
wonder, however, how strict a drug policy should be, and I question the 
value of mandatory minimums.