If you take the biological weapons in the United States we still will have perhaps a single individual who was able to make anthrax, dry it, and spread it through the mail and cause terror.
Iraq did not spontaneously opt for disarmament. They did it as part of a ceasefire, so they were forced to do it, otherwise the war might have gone on. So the motivation has been very different.
Unlike South Africa, which decided on its own to eliminate its nuclear weapons and welcomed inspection as a means of creating confidence in its disarmament, Iraq appears not to have come to a genuine acceptance - not even today - of the disarmament, which was demanded of it and which it needs to carry out to win the confidence of the world and to live in peace.
I found it peculiar that those who wanted to take military action could - with 100 per cent certainty - know that the weapons existed and turn out to have zero knowledge of where they were.