He said in the interview that the threat Saddam posed to the region was uppermost in his mind and the possibility that Iraq had powerful weapons was only one factor behind his decision. Others were Saddam's 12 years of stalling United Nations weapons inspectors and his use of chemical weapons on his own people.
Thanks, Mr. Blair, for articulating the SWNIDish position for the wider public. We ask everyone again to engage in the exercise of imagining a world in which Saddam was still in power.
Note that this statement could have been made in Oslo by another prominent global leader.