Tony Blair's restless shifting of his justification for war undermines conviction, for standard "ladydoth protest too much" reasons. More important is the dangerous paradox that his opportunism must arousein the mind of Saddam Hussein. When the stated aim was to disarm him, Saddam had only to comply and war wouldbe averted. But if the aim is to save the poor helpless Iraqis from their wicked tyrant, everything changes.Why would anyone disarm on the eve of an inevitable attack? Mr Blair's sudden shift to the moral high groundis presumably a desperate (and it now seems unsuccessful) bid to win over his own party. But has he thoughtthrough how it will be viewed in Iraq?