Cos you get more people killed? Whats a few hundred americans and a few thousand iraqis compared to hundreds of thousands? And after youve killed the hundreds of thousands, youd be compelled to come to a sensible solution due to the shock of world opinion. Moreover, you are suggesting killing people like the bishop of somewhere in the south of france did when suppressing the Albigensians, he said "kill them all, God will know his own." No concern over justice, rightness, any form of deserving it. You know, its funny how your talking about historical wars, when so many people like to say how this war on terrorism is without precedent and is new etc etc.