It didn’t take long for interrogators in the war on terror to realize that their part was not going according to script. Pentagon doctrine, honed over decades of cold-war planning, held that 95 percent of prisoners would break upon straightforward questioning. Interrogators in Afghanistan, and later in Cuba and Iraq, found just the opposite: virtually none of the terror detainees was giving up information—not in response to direct questioning, and not in response to army-approved psychological gambits for prisoners of war.