" On “matched” senders, the seasoned interrogators were perfect. You or I would probably come in at 70 or 75 percent on that set of tapes. But everyone in Levine’s group of highly experienced experts got every matched sender right. On mismatched senders, however, their performance was abysmal: they got 20 percent right. And on the subcategory of sincere-acting liars, they came in at 14 percent—a score so low that it ought to give chills to anyone who ever gets hauled into an interrogation room with an FBI agent. When they are confronted with Blushing Sally—the easy case—they are flawless. But when it comes to the Amanda Knoxes and Bernie Madoffs of the world, they are hapless. "

― Malcolm Gladwell , Talking to Strangers: What We Should Know About the People We Don’t Know