What is the most important change needed in the US criminal Justice Sysytem? I think it has to with overcrowded prisons that affect...

Along the same lines as the above posts, there is the
argument for the legalization of marijuana.  Taking the profit out of the trafficking of
marijuana through legislation could easily have the same effect as eliminating
Prohibition did.  In fact, some states have decriminalized the sale of medical marijuana
already.

The decriminalization of the sale of marijuana
would have several positive effects. It would definitely reduce many of the criminal
activities in U.S. border states that reach far into their territory.  For instance, in
the May 10, 2010 edition of Newsweek in an article about the
dilemmas of Arizona, Eve Conant writes,

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An hour later they [sheriff's deputies] raided a
McMansion adorned with hunting trophies and Scarface posters; a
white SUV jammed with 300 pounds of marijuana was parked out front.  (Sixty percent of
all the marijuana that reaches the U.S. transits Arizona.)  Against the house was in a
high-end development, nowhere near the
border.

Another improvement
needed in the criminal justice system is the fact that there is no adequate sentencing
for pedophiles.  Studies have demonstrated that there is virtually no rehabilitation for
pedophiles, who repeatedly offend.  After having served time in prison and they are
released, they commit their crimes again; in addition, as they realize that their
chances of getting away with their crime are increased, they often, then, murder their
victims.