The Foreign Ministry secretly conducted a simulation in 1984 to assess damage from a hypothetical attack on a nuclear power plant in a war and concluded that up to 18,000 people would be killed with acute symptoms from radiation exposure, it emerged Wednesday.
The previously secret report also mentioned the possibility of a hydrogen explosion that could follow the meltdown of fuel rods in a nuclear power plant, the exact phenomenon that happened during the 2011 Fukushima crisis.
Anti-nuclear activists slammed the ministry for not publicizing the report earlier, allegedly out of fear that the warnings could fan anti-nuclear sentiment among the public.
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