Britain's top nuclear safety inspector, Mike Weightman, is leading the International Fact-Finding Mission in Japan. He arrived in Tokyo on 24 May 2011 to begin his study of the nuclear situation in Japan. Following its agreement with the Government of Japan, the IAEA organized and dispatched the mission, consisting of a team of nuclear experts from 12 countries who will prepare a report for the Ministerial Conference on Nuclear Safety at IAEA headquarters in Vienna on 20 to 24 June.