New data from Japan's crippled nuclear plant underscore the challenges of decommissioning. Workers at the Fukushima Daiichi site found extremely high radiation in a reactor during a remote controlled inspection.
Tokyo Electric Power Company recorded up to 8 sieverts per hour under the core of reactor 2. Experts say that level would kill a person in an hour.
Tokyo Electric staff want to remove fuel debris from all the reactors that melted down in 2011.
They hope to figure out a method during the fiscal year through March 2020.