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Robot begins removing Fukushima nuclear plant’s melted fuel.
(www.voanews.com)
This is a most excellent place for technology news and articles.
Itself, not very, but any dust or flakes that land on it definitely will be. It only takes very small particles.
Usually, equipment like that is abandoned in place. Radiation has weakened its parts, and decontamination is complex and time-consuming for something you can't just hose and scrub down.
We're just gonna set up a vat of molten metal and send it out Terminator 2 style. /s