Japan’s nuclear agency raised its assessment of the nuclear crisis at the Fukushima Daiichi Nuclear Power Station from a level 4 to a level 5 on a 7-level international scale for nuclear accidents, matching an earlier assessment by France.
'We need to overhaul IAEA,' says Najmedin Meshkati of University of Southern California, repeating a call that is gaining traction amid the Japan nuclear crisis.
US and Japanese authorities give differing accounts of the situation at the Fukushima I nuclear plant and the size of the danger zone. Different interpretations of the same data?
Workers at Japan's stricken Fukushima nuclear power plant are still days – if not weeks – away from bringing the crisis under control. The reason: nuclear fuel rods remain dangerously hot well after reactors are shut down, and all cooling systems at Fukushima have failed.
Reports suggest that greed within the worldwide nuclear industry, combined with an insufficient UN watchdog and lax oversight of Japan's nuclear plants, contributed to the Japan nuclear crisis.
High radiation levels halted crucial efforts to cool damaged nuclear reactors at risk of complete meltdown in Japan.
Nuclear power has been something of a sacred cow in France. But the Japan nuclear crisis in the wake of last week's earthquake and tsunami is raising concern even here.
A month after the March 11, a 9.0 earthquake triggered a 30-foot tsunami that damaged several nuclear reactors in northeastern Japan, causing the country's worst crisis since World War II, a 7.4 temblor shook the country again.
Monday night, radiation levels spiked to dangerous levels, but within hours had fallen to less than 1 percent of that. The radiation exposure so far should not pose a serious threat to humans.