Tom Tomorrow points out that Tenet's book has a rather interesting claim on page 356. US forces discovered a large cache of documents that showed al Qaeda had tight connections to Saddam. The only problem is, they were all forgeries.
So who would want to forge these documents? Who would gain if the forgery had been believed? Israel? Iran? Cheney? All of the above?
Tom asks the equally interesting question about why we're only hearing about this now.
BTW, I've a relevant post on this from 2004.