I'm going to rephrase part of my last post. I think it might make things a little clearer.

If we don't abide by the laws (or resolutions) to which we hold Saddam Hussien, we cannot use those same laws (or resolutions) to make our case against him. (And if we try to do that, the only law we are holding ourselves to is "might makes right".)

That is my point in a nutshell.