International reactions to the Fukushima Daiichi nuclear disaster the IAEA in boosting nuclear safety, including its response mechanism". On 28 March 2011, at a special briefing on the Fukshima nuclear accidents held for IAEA Member States, IAEA Director General Yukiya Amano announced that a high-level "IAEA Conference on Nuclear Safety" should take place in Vienna. According to the International Atomic Energy Agency, Japan "underestimated the danger of tsunamis and failed to prepare adequate backup systems at the Fukushima Daiichi nuclear plant". This repeated a widely held criticism in Japan that "collusive ties between regulators and industry led to weak oversight and a failure to ensure adequate safety levels
International Atomic Energy Agency power has made it a target for protests". The journal "Nature" has reported that the IAEA response to the Fukushima I nuclear accidents in Japan was "sluggish and sometimes confusing", drawing calls for the agency to "take a more proactive role in nuclear safety". But nuclear experts say that the agency's complicated mandate and the constraints imposed by its member states mean that reforms will not happen quickly or easily, although its INES "emergency scale is very likely to be revisited" given the confusing way in which it was used in Japan. Some scientists say that the 2011 Japanese nuclear