Any information relevant to national security (such as names, etc.) could easily be redacted.
Any information relevant to national security (such as names, etc.) could easily be redacted.
People outside the government have read the files. As the article says, lawyers for plaintiffs in the ongoing civil suit saga have seen them, as presumably would the judge. If the documents detailed criminal activity on the part of the U.S. government we'd have heard something about it by now.
Also, given what we know about CIA funding of Al-Qaeda, it's not a huge stretch to suspect US involvement. Or at least, a bungled entrapment or outright rogue operation.
It's hard to guess what US allies might be involved. Israel is a popular guess. Especially given its oddly close relationship with the Saudis, and its entanglement with US intelligence agencies. And then there's the fact that Mossad agents were trailing the Saudi terrorists for some time before the attacks.
But then, it could literally be anyone. And the Israelis and Saudis might have been framed.