TOKYO--A remote-controlled robot on Tuesday was used to probe the hardest-hit nuclear reactor at Japan's wrecked Fukushima plant, as officials push forward with clean-up operations that have been mired in delays and controversy.An earthquake and tsunami in 2011 unleashed a disastrous meltdown at Fukushima Daiichi's three reactors that partly sunk their radioactive cores into the plant's concrete foundations, making removal extremely difficult. The plant's operator, Tokyo Electric Power Company H
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2022-02-08 00:00:00.0