Before the TV Quiz Show Scandal broke in the late 1950s, Herbert Stempel was destined to be a little-remembered contestant on the NBC quiz show "Twenty-One." However, as the man who helped expose ...

By Robert D. McFadden In the isolation booth, Herb Stempel bit his lip to show tension. He dabbed sweat from his brow and sighed into the microphone. And as 50 million viewers hung in suspense ...