Charles Krauthammer

Torture is an impermissible evil. Except under two circumstances. The first is the ticking time bomb. An innocent's life is at stake. The bad guy you have captured possesses information that could save this life. He refuses to divulge. In such a case, the choice is easy.

How do you play someone in a movie? How do you do that? It's impossible - unless you know how. How do you cut somebody open and take out their appendix and sew them back up and watch them get well? That's impossible - unless you know how.