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Hayden knows that for now, torture is off the table. He doesn't want that to be a permanent state of affairs. Here's what Hayden/Mukasey said in the WSJ:
Moreover, disclosure of the details of the program pre-empts the study of the president's task force and assures that the suspension imposed by the president's executive order is effectively permanent. There would be little point in the president authorizing measures whose nature and precise limits have already been disclosed in detail to those whose resolve we hope to overcome. This conflicts with the sworn promise of the current director of the CIA, Leon Panetta, who testified in aid of securing Senate confirmation that if he thought he needed additional authority to conduct interrogation to get necessary information, he would seek it from the president. By allowing this disclosure, President Obama has tied not only his own hands but also the hands of any future administration faced with the prospect of attack.
http://online.wsj.com/article/SB123993446103128041.html
That's a good thing, if it can be believed.