The commission of inquiry set up by the government after the nuclear disaster at the Fukusima dai-ichi plant has recorded some 770 testimonies. 240 have been made public since, with the agreement of the interviewees, including that of the former director of the plant, Masao Yoshida, now deceased.
TEPCO shareholders filed a lawsuit for the publication of the testimonies from 11 executives of TEPCO and 3 executives of NISA, which was the regulator at the time. They have just been dismissed.
Justice considered that if these documents were disclosed, it would be difficult to obtain the cooperation of the concerned persons in the future. The same applies to the secret portions of partially published testimonies.