Controversial "Jeopardy!" champion Arthur Chu returns tonight

Controversial "Jeopardy!" champion Arthur Chu returns tonight »Play Video
Jeopardy! champ Arthur Chu has been called everything from unsportsmanlike, to a super villain. His Daily Doubles strategy has him dominating the game, and now the controversial four-time winner returns for the Tournament of Champions. But, is he breaking all of the unwritten rules? Nischelle Turner has his answer to that question.