Mild-Mannered Watson Skewers Human Opponents on Jeopardy

A supercomputer designed by IBM and dubbed "Watson" went up against game show Jeopardy's two all-time champions -- and won. Pitting champs Ken Jennings and Brad Rutter against Watson, the contest was a practice round for the main event: a televised face-off between man and machine next month on the popular game show.