Stonewalled by the C.I.A.

"MORE than five years ago, Congress and President Bush created the 9/11 commission. The goal was to provide the American people with the fullest possible account of the “facts and circumstances relating to the terrorist attacks of Sept. 11, 2001” — and to offer recommendations to prevent future attacks. Soon after its creation, the president’s chief of staff directed all executive branch agencies to cooperate with the commission."