If you haven't read it or heard it, here's the full text of the speech with which Robin Cook resigned from the British government.

Some excerpts:

Only a year ago, we and the United States were part of a coalition against terrorism that was wider and more diverse than I would ever have imagined possible. History will be astonished at the diplomatic miscalculations that led so quickly to the disintegration of that powerful coalition....

For four years as Foreign Secretary I was partly responsible for the western strategy of containment. Over the past decade that strategy destroyed more weapons than in the Gulf war, dismantled Iraq's nuclear weapons programme and halted Saddam's medium and long-range missiles programmes. Iraq's military strength is now less than half its size than at the time of the last Gulf war.

Ironically, it is only because Iraq's military forces are so weak that we can even contemplate its invasion. Some advocates of conflict claim that Saddam's forces are so weak, so demoralized and so badly equipped that the war will be over in a few days. We cannot base our military strategy on the assumption that Saddam is weak and at the same time justify pre-emptive action on the claim that he is a threat.

Iraq probably has no weapons of mass destruction in the commonly understood sense of the term—namely a credible device capable of being delivered against a strategic city target. It probably still has biological toxins and battlefield chemical munitions, but it has had them since the 1980s when US companies sold Saddam anthrax agents and the then British Government approved chemical and munitions factories. Why is it now so urgent that we should take military action to disarm a military capacity that has been there for 20 years, and which we helped to create? Why is it necessary to resort to war this week, while Saddam's ambition to complete his weapons programme is blocked by the presence of UN inspectors? ...