Well, my question is, if Osama bin-Ladin had been captured alive, what could we have done with him?
This was probably the best possible outcome, killing the hoary old madman on site.
Near the end of the second world war, a question was raised in the British Parliament, about what a British soldier should do, if he suddenly came face-to-face with Adolph Hitler--capture him or kill him?
The concensus was, if a British soldier came face-to-face with Adolph Hitler, whatever he did was okay with everybody else.