The essential facts are known. We know of the weapons in Saddam’s possession: chemical, biological, and nuclear in time. We know of his unequaled willingness to use them. We know his history. His invasions of his neighbors. His dreams of achieving hegemonic control over the Arab world. His record of anti-American rage. His willingness to terrorize, to slaughter, to suppress his own people and others. We need not stretch to imagine nightmare scenarios in which Saddam makes common cause with the terrorists who want to kill us Americans and destroy our way of life.