Waste of time
As a survivor of the bombings I've been following this pretty closely. These are some things to bear in mind:
MI5 have such a huge amount of data to go through I can happily believe that they simply chose what they thought were the best priorities. "Hindsight, " as Intelligence & Security Committee chairman Kim Howells said " is a wonderful thing."
Kim Howells, however, has been linked with the Labour Party for decades. In fact, from before the miners' strike of 1984. Dr Howells has since admitted to destroying union documents during the strike which may have related to the death of a miner who crossed the picket line and was killed when two striking miners dropped a concrete block on his car [http://news.bbc.co.uk/1/hi/wales/3435161.stm].
His predecessor as chairman was one Margaret Beckett, Labour leader after the late John Smith and before a certain Anthony Blair. The earlier version of the "report" from July 2008 has a covering letter from her to the Prime Minster starting "Dear Gordon" (not, you'll note, 'Dear Prime Minister' - all terribly chummy) [http://www.cabinetoffice.gov.uk/intelligence/special_reports.aspx].
Is there anyone ... ANYONE ... out there who seriously believes that this updated waste of trees is in any way independent and capable of criticising those who might (and I stress "might") have been at fault? No-one who isn't currently investigating their own colon, I suspect.
A public enquiry might - frankly - do bugger all, but I'm sure as hell not going to be told what happened to me and hundreds others that day by a bunch of corrupt, detached, self-serving imbeciles who might very well have screwed up and be hiding it.