[donfie]

As far as I see it there are a number of stances on correction:

1. It's a deterrant.
2. It's a punishment.
3. It's a means of rehabilitaion.
4. It's just to get them out of the way.

There's no evidence that 1 or 3 works in any significant way. 2. is either linked to 1 and/or 3. or is simply a matter of revenge and does indeed lower us. For me, 4. is all I care about because my only concern is my safety.