Television's Tiniest Stars

"Surprisingly, even Mr. Wagenberg believes that secret video has gone too far. "I definitely feel undercover has been overused," he said during a rare interview here, where he was rigging courtrooms with the nearly invisible robotics that capture real legal conflict for NBC's "Crime & Punishment." The interview took place on the condition that he not be directly photographed or described, since he often goes undercover to plant his devices.