A few months ago, back when Japan was freshly reeling from that devastating earthquake and tsunami, it became obvious that robots could help survey radiation levels in Fukushima, even if they were powerless to lower them. Now, Tokyo Power Electric Co., the company that operates the damaged nuclear plant, is experimenting with an ad hoc system designed to clean at least some of the radioactive dirt from the reactors. What you see in that clip below is an industrial-grade vacuum cleaner attached to a
