Not even robots can survive within the ruins of the Fukushima power plant. Operators lost contact with the five robots that went in, they are assumed to have broken-down from the radiation.
After a 9.0 Earthquake triggered a tsunami, killing 16,000 people and causing a meltdown at the Fukushima Daiichi plant, officials began removing the spent fuel pins (or rods) back in 2013. This project was headed up by the plant’s operator, Tokyo Electric Power Co (Tepco). They have so far removed hundreds of spent fuel rods from one of the damaged buildings, but there are still three more buildings to clear, and locating the fuel rods is proving difficult.