TORTURE

"There were two reasons why these interrogations were so persistent, and why extreme methods were used," the former senior intelligence official said on condition of anonymity because of the issue's sensitivity.

"The main one is that everyone was worried about some kind of follow-up attack (after 9/11). But for most of 2002 and into 2003, Cheney and Rumsfeld, especially, were also demanding proof of the links between al Qaida and Iraq that (former Iraqi exile leader Ahmed) Chalabi and others had told them were there."

See the whole article from McClatchy here.