And let us make this reflection. A week ago, anyone suggesting terrorists would kill thousands of innocent people in downtown New York would have been dismissed as alarmist. It happened. We know that these groups are fanatics, capable of killing without discrimination. The limits on the numbers they kill and their methods of killing are not governed by morality. The limits are only practical or technical. We know, that they would, if they could, go further and use chemical or biological or even nuclear weapons of mass destruction. We know, also, that there are groups or people, occasionally states, who trade the technology and capability for such weapons.

It is time this trade was exposed, disrupted, and stamped out. We have been warned by the events of 11 September. We should act on the warning.

So there is a great deal to do...