(Let me make your job easy by quoting the few sentenses from that author)
Before we get to the reasons why, look at the facts as reported by the New York Times.
The U.S. leads the world in prisoner production.
There are 2.3 million people behind bars. China, with four times as many people, has 1.6 million in prison.
In terms of population, the US has 751 people in prison for every 100,000, while the closest competitor in this regard is Russia with 627. I'm struck by this figure: 531 in Cuba.
The median global rate is 125.
The world has been filled with prisons and dungeons, with chains and whips, with crosses and gibbets, with thumb-screws and racks, with hangmen and headsmen – and yet these frightful means and instrumentalities and crimes have accomplished little for the preservation of property or life.
It is safe to say that governments have committed far more crimes than they have prevented.
As long as society bows and cringes before the great thieves, there will be little ones enough to fill the jails."
http://www.lewrockwell.com/rockwell/prison-nation.html