“We've all heard that great definition of insanity: Insanity is keeping on doing the same thing and expecting different results. That's what we've been doing. Throwing more money and more lives at the problem and expecting things to get better. They won't until we end this insanity.” Sharon Harris
The Casualties of War is a very comprehensive article written by Sharon Harris on the War on Drugs.
I highly recommend its reading.
This is not only true of the War on Drugs, but as an aside, it is also true of the Iraq War – it’s a very good, simple argument as to why we should get out of Iraq.