Mr. Noda, who was finance minister at the time of the disaster, was promoted to the premiership in September after his predecessor, Naoto Kan, lost popular support amid criticism over the government's handling of disaster relief and the nuclear accident.
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Since the reactors would not be pressurized, radioactivity would not be expelled as widely into the environment as in an accident like the Fukushima disaster, Wilson said.
The panel said its aim was not to apportion blame for the disaster, but to learn why the accident happened in the way it did, AFP news agency reported.
The victims of a natural disaster, a major illness or an accident may not be able to recover and live their lives the way they used to, but they too can save themselves the self-torment.
He said the whole world wanted such measures because "an accident similar to the Chernobyl nuclear disaster must be averted".
By contrast, the Chernobyl disaster, by far the worst nuclear power accident in history, has to date killed about 65 people.
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They might include an industrial accident that causes injury or death, or an environmental disaster for which the company is responsible.
Staggeringly, only 10% of subcontractors who were dealing with the disaster had received any kind of advance explanation about the possibility of an accident.
The Metropolitan Police service, Lord Clarke said, "was ill-prepared" for the accident, with no specific plan to deal with a major river disaster and few rescue craft available.
The Columbia Accident Investigation Board, which is looking into the cause of the shuttle disaster, gave NASA permission to release the photos because it determined they were not relevant to the probe.
"Although triggered by these cataclysmic events, the subsequent accident at the Fukushima Daiichi Nuclear Power Plant cannot be regarded as a natural disaster, " it said.
The families' requests for a public inquiry were initially refused, but a Marine Accident Investigation Board inquiry blamed the failure of lookouts on both vessels for the disaster.
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