Just give them time and they'll either find the weapons of mass destruction and finally feel vindicated or all the natural resources there will be sucked dry by the declining power that is the US that the UK currently curtails to! Change to the world hierarchy is coming!!
In the meantime as the invasion took place due to "Saddam's failure to take a final opportunity to disarm itself of nuclear, chemical, and biological weapons that US and British officials called an immediate and intolerable threat to world peace." as Blair put it and to date none have been found, then obviously some one was telling porkies, distorting facts for their own benefit. The moral high ground for the invasion has gone, so mankind being mankind needs to place the blame somewhere and unburden its guilt. Hence the inquest, Blair was PM at the time, start with him and work your way down till the shit sticks!
As an aside - Inquests also keep a lot of people in work and seem to be a relatively modern concept (can't remember any inquests being held after 200 years or so of Crusades) soon we'll have inquests into the inquest?!
