Once upon a time, if a character on TV or in a movie tortured someone, it was a sure sign that he was a bad guy. Now, the torturers are the all-American heroes. From 24 to Zero Dark Thirty, it's been the good guys who wielded the pliers and the waterboards. We're not only living in a post-9/11 world, we're stuck with Jack Bauer in the 25th hour.

In 2002, Cofer Black, the former Director of the CIA's Counterterrorism Center, told a Senate committee, "All I want to say is that there was 'before' 9/11 and 'after' 9/11. After 9/11 the gloves come off." He wanted them to understand that Americans now live in a changed world, where, from the point of view of the national security state, anything goes. It was, as he and various top officials in the Bush administration saw it, a dangerous place in which terrorists might be lurking in any airport security line and who knew where else.