PositiveThe London Review of Books... a classic study of blowback and is a better, fuller reconstruction of this history than the Final Report of the National Commission on Terrorist Attacks upon the United States (the so-called ‘9/11 Commission Report’) ... Coll has written a powerful indictment of the CIA’s myopia and incompetence, but he seems to be in two minds. He occasionally indulges in flights of pro-CIA rhetoric...whose analysts were continually encouraged to share information as widely as possible among those with appropriate security clearances’. This is nonsense: the early-warning functions of the CIA were upstaged decades ago by covert operations.