“There is an interval—which may be extremely brief—of suspended animation, a kind of psychological shock or paralysis. It is caused by a traumatic or sub-traumatic experience which explodes, as it were, the world that is familiar to the subject as well as his image of himself within that world. Experienced interrogators recognize this effect when it appears and know that at this moment the source is far more open to suggestion, far likelier to comply, than he was just before he experienced the shock.”37