Going for gold! Meet the terrifying competitors in the 'robo-olympics'

It has been dubbed the Robo-Olympics, and will see the world's most advanced robots go head to series in a series of ever more challenging events. Twenty five of the top robotics organizations in the world are competing for $3.5 million in prizes, and will take on a gruelling simulated disaster-response course during the two day contest. Robots will try to complete a series of challenge tasks selected by DARPA for their relevance to disaster response. The robots will start in a vehicle, drive to a simulated disaster building, and then they'll have to open doors, walk on rubble, and use tools. There will be a surprise task waiting for the robots at the end - which turned out to be turning a valve.