Tokyo:
The Japanese government withheld information about the full danger of last year's nuclear disaster from its own people and from the United States, putting US-Japan relations at risk in the first days after the accident, according to an independent report released on Tuesday.
The report, compiled from interviews with more than 300 people, delivers a scathing view of how leaders played down the risks of the meltdowns at the Fukushima Dai-ichi nuclear plant that followed a massive March 11 earthquake and tsunami.
The report by the private Rebuild Japan Initiative Foundation also paints a picture of confusion during the days immediately after the accident. It says the US government was frustrated by the scattered information provided by Japan and was skeptical whether it was true.
The US advised Americans to leave an area within 50 miles (80 kilometers) from the plant, far bigger than the 12-mile (20-kilometer) Japanese evacuation area, because of concerns that the accident was worse than Japan was reporting.
The misunderstandings were gradually cleared up after a bilateral committee was set up on March 22 and began regular meetings, according to the 400-page report.
The report, compiled by scholars, lawyers and other experts, credits then-Prime Minister Naoto Kan for ordering Tokyo Electric Power Co., the utility running the plant, not to withdraw its staff and to keep fighting to bring it under control.
TEPCO's president at the time, Masataka Shimizu, called Kan on March 15 and said he wanted to abandon the plant and have all 600 TEPCO staff flee, the report said. That would have allowed the situation to spiral out of control, resulting in a much larger release of radiation.
A group of about 50 workers was eventually able to bring the plant under control.
TEPCO, which declined to take part in the investigation, has denied it planned to abandon Fukushima Dai-ichi. The report notes the denial, but says Kan and other officials had the clear understanding that TEPCO had asked to leave.
But the report blames Kan for attempting to micromanage the disaster and for not releasing critical information on radiation leaks.
Kan's office did not immediately respond to requests for comment on the report.
Kan acknowledged in a recent interview with The Associated Press that the release of information was sometimes slow and at times wrong. He blamed a lack of reliable data at the time and denied that the government hid such information from the public.
The report also concluded that government oversight of nuclear plant safety had been inadequate, ignoring the risk of tsunami and the need for plant design renovations, and instead clinging to a "myth of safety."
"The idea of upgrading a plant was taboo," said Koichi Kitazawa, a scholar who heads the foundation that prepared the report. "We were just lucky that Japan was able to avoid the worst-case scenario. But there is no guarantee this kind of luck will prevail next time."
The report, compiled from interviews with more than 300 people, delivers a scathing view of how leaders played down the risks of the meltdowns at the Fukushima Dai-ichi nuclear plant that followed a massive March 11 earthquake and tsunami.
The report by the private Rebuild Japan Initiative Foundation also paints a picture of confusion during the days immediately after the accident. It says the US government was frustrated by the scattered information provided by Japan and was skeptical whether it was true.
The US advised Americans to leave an area within 50 miles (80 kilometers) from the plant, far bigger than the 12-mile (20-kilometer) Japanese evacuation area, because of concerns that the accident was worse than Japan was reporting.
The misunderstandings were gradually cleared up after a bilateral committee was set up on March 22 and began regular meetings, according to the 400-page report.
The report, compiled by scholars, lawyers and other experts, credits then-Prime Minister Naoto Kan for ordering Tokyo Electric Power Co., the utility running the plant, not to withdraw its staff and to keep fighting to bring it under control.
TEPCO's president at the time, Masataka Shimizu, called Kan on March 15 and said he wanted to abandon the plant and have all 600 TEPCO staff flee, the report said. That would have allowed the situation to spiral out of control, resulting in a much larger release of radiation.
A group of about 50 workers was eventually able to bring the plant under control.
TEPCO, which declined to take part in the investigation, has denied it planned to abandon Fukushima Dai-ichi. The report notes the denial, but says Kan and other officials had the clear understanding that TEPCO had asked to leave.
But the report blames Kan for attempting to micromanage the disaster and for not releasing critical information on radiation leaks.
Kan's office did not immediately respond to requests for comment on the report.
Kan acknowledged in a recent interview with The Associated Press that the release of information was sometimes slow and at times wrong. He blamed a lack of reliable data at the time and denied that the government hid such information from the public.
The report also concluded that government oversight of nuclear plant safety had been inadequate, ignoring the risk of tsunami and the need for plant design renovations, and instead clinging to a "myth of safety."
"The idea of upgrading a plant was taboo," said Koichi Kitazawa, a scholar who heads the foundation that prepared the report. "We were just lucky that Japan was able to avoid the worst-case scenario. But there is no guarantee this kind of luck will prevail next time."
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