The above link is a very interesting read on the virtues of killing children. It may not sit well with you at first, but if you have a realistic bone in your body, then it just might strike a chord.
I, for one, agree with the author, but only fear that if we could actually adopt that mindset to accomplish what needs to be done, we would have a hard time turning it off once it was done.
But it will never happen that way, because we are good, children loving people. And that is just what gets them killed.