I dislike Cheney intensely, and I have little doubt that there was 'careless' attention by Bush/Cheney to data that might have been useful... but I CANNOT believe that even Cheney would have ignored specific information about the nature of the attacks. (The data they had was kinda vague..something like a report heading.. ""bin Laden determined to attack US"
So far, no one has shown me evidence that he did have specific info. I HAVE seen evidence that he manipulated data and public opinion to capitalize on the aftermath of 9/11.