Assuming such an Inquiry would be held under the terms of the Inquiries Act 2005, it would have at its disposal considerable investigative powers. Depending on its frame of reference, it couldn't fail to uncover a lot of pertinent material that would be of considerable interest.
There are some problems associated with the Act (principally surrounding eventual publication of findings), but if you feel there are unanswered questions, I can't think of a better place to start answering them.
Waste of time and a waste of money!!! We've had two inquiries already, Hutton and Butler. The Hutton inquiry clearly showed that intelligence reports were changed to increase the level of threat. Caveats were removed and intelligence officers were uneasy with what was going on and made complaints to their line managers, and what was done nothing? Nothing.
And Hutton concluded that nothing was improper, mmmmm, really? The Butler report was even worse, 'there were wholesale intelligence failings', you don't say, 'but it's no ones fault!'. And then John Scarlett the man supposedly in charge of this fiasco gets promoted.
600, 000 people lose their lives in Iraq, over 4,000 US service people, 179 Brirish service people and only 3 people from the BBC and Piers Morgan lose their jobs.
Unfortunately i have no faith in another inquiry.