"Thomas Kean remembers finally having the opportunity to read those twenty-eight pages after he became chairman of the 9/11 Commission—'so secret that I had to get all of my security clearances and go into the bowels of Congress with someone looking over my shoulder.' He also remembers thinking at the time that most of what he was reading should never have been kept secret. But the focus on the twenty-eight pages obscures the fact that many important documents are still classified—'a ton of stuff,' Kean told me, including, for instance, the 9/11 Commission’s interviews with George W. Bush, Dick Cheney, and Bill Clinton. 'I don’t know of a single thing in our report that should not be public after ten years,' Kean said.
Items are classified to protect power.