The Illustrated Guide to Criminal Law
Chapter 3: Punishment 
Page 4: Does Rehabilitation Work?

NARRATOR

Some others are simply scared straight by the shame and trauma of the mere arrest itself. No punishment is needed to rehabilitate them.

But what about the remaining 17%? The recidivists who DO get in trouble again?

Average Joe looking sullen

JOE

Yeah, what about us?

NARRATOR

These are the ones rehabilitation is aimed at.  …well, SOME of them, anyway.

Prison yard with inmates working out and socializing, one loner off to the side on a bench.

In the old days, some thought that prison alone was enough. It was time to think about what you had done, and mend your ways.

LONER

So how did that work out for ya?