Fukushima's ground zero: No place for man or robot

Fukushima's ground zero: No place for man or robot: "The robots sent in to find highly radioactive fuel at Fukushima's nuclear reactors have “died”; a subterranean "ice wall" around the crippled plant meant to stop groundwater from becoming contaminated has yet to be finished. And authorities still don’t how to dispose of highly radioactive water stored in an ever mounting number of tanks around the site."