The leaking of Lord Goldsmith's summary of his advice on the legality of invading Iraq has forced the government to publish the full advice. It explicitly rules out self-defence and humanitarianism as justifications for war, and states flat-out that if military action is to be justified on the basis of prior UN resolutions, it must be aimed solely at disarmament;
Regime change cannot be the objective of military action.
It then goes on to argue that a second resolution would be needed, without which he could not guarantee that British politicians and soldiers would not be prosecuted for war crimes. Families of British soldiers killed in Iraq are already preparing their case against Blair. Hopefully The Hague won't be too far behind.
Blair has called this a "damp squib", but its not so much about what the advice says (frankly it tells us nothing that we didn't know already), but the way in which Blair systematically lied about it to the armed forces, to his own cabinet, to Parliament, and to the British public. This was done explicitly in order to subvert the checks and balances within the system (can anyone imagine the UK Cabinet voting to go to war on advice this week? Can anyone imagine the UK Parliament doing so?) and to minimise the political damage to himself. And that is what the British public must punish him for.
Update: Fixed title. I plead lack of caffeine.