Just a matter of time before Asimovs "Three Laws of Robotics" are broken and we are taken over by them.....oh:
http://www.nytimes.com/2011/02/17/science/17jeopardy-watson.html?partner=rss&emc=rss
http://www.nytimes.com/2011/02/17/science/17jeopardy-watson.html?partner=rss&emc=rss