The question this piece says went unasked is not "what should we value." It is what physics requires for a complex system to keep existing. The National Diet of Japan had a melted plant on the table and still did not pose it.
The Fukushima Nuclear Accident Independent Investigation Commission was created by the NAIIC Act of 30 October 2011, the first independent commission in Japan's constitutional government. Ten members were appointed on 8 December 2011. Kiyoshi Kurokawa chaired. Article 10 of the Act told them to find the direct and indirect causes of the TEPCO Fukushima accident, the causes of the damage, whether the emergency response worked, the history of nuclear-policy decisions, and measures to prevent a repeat, including essential nuclear policies and the structure of the related administrative organizations. They did not study whether Japan should keep nuclear power.
The English executive summary (5 July 2012) already had the physical constraint: "Since 2006, the regulators and TEPCO were aware of the risk that a total outage of electricity at the Fukushima Daiichi plant might occur if a tsunami were to reach the level of the site." They also knew a tsunami larger than the Japan Society of Civil Engineers estimate could take out the seawater pumps and damage the core. NISA knew TEPCO had not prepared measures "but failed to provide specific instructions to remedy the situation." Chapter 5 is more specific: at the 11 May 2006 Study Group on Flooding, TEPCO and NISA shared that an O.P. +10 m tsunami at Unit 5 risked core damage from seawater pumps failing, and O.P. +14 m risked station blackout from flooding of the building.
That is what the plant required to continue through a tsunami that reached the site: power and a heat sink above the water. What NAIIC asked instead was collusion. "The TEPCO Fukushima Nuclear Power Plant accident was the result of collusion between the government, the regulators and TEPCO, and the lack of governance by said parties… we conclude that the accident was clearly 'manmade.'" Kurokawa's English chairman's message went further — a disaster "Made in Japan" from reflexive obedience, reluctance to question authority, groupism, insularity. The Japanese preface talks about regulatory capture in the high-growth years, not that phrase.
The recommendations are a Diet committee to watch the regulators, a new independent regulator, crisis-management reform, a rewrite of nuclear-energy law, and a standing system of independent investigation commissions. Not: name the host and the time window, then what must remain true for that host to persist through a tsunami that reaches the site. They had the physics. They asked who colluded.
Same conversion, thirty years earlier, and they said it out loud.
The President's Commission on the Accident at Three Mile Island — John G. Kemeny chair, report October 1979, The Need for Change: The Legacy of TMI — wrote: "the fundamental problems are people-related problems and not equipment problems." And: "We are convinced that if the only problems were equipment problems, this Presidential Commission would never have been created. The equipment was sufficiently good that, except for human failures, the major accident at Three Mile Island would have been a minor incident."
The analogy holds up to there. Both autopsies treat the physical plant as already settled and spend the mandate on mindset.
The break is the valve. On 28 March 1979 the pilot-operated relief valve at TMI-2 stuck open. The control-room light showed that the close signal had been sent to the solenoid, not that the valve had reseated. The commission's own assessment of significant events records that the indicator "showed only that the signal had been sent to close the PORV rather than the fact that the PORV remained open," and that coolant ran out for more than two hours. That is not "the equipment was sufficiently good." It is a cheap model of the plant — command, not stem position — billed as the plant. Kemeny still filed the case as people and attitudes. This piece's question is what must be true for the host to continue. Kemeny announced they were not asking that.