The identity of the individual in the prime minister’s office who exacerbated the nuclear disaster seems destined to forever remain a mystery. All that is known is that a call was made from the office in Tokyo to Masao Yoshida, the late manager of the crippled Fukushima No. 1 nuclear power plant, calling for reconsideration of his plan to pump seawater into the No. 3 reactor. Giving up the plan to switch to seawater early on the morning of March 13, 2011, later led to a brief period when water was not being pumped into the No. 3 reactor. That led to overheating of the reactor, which dangerously added to the unfolding crisis triggered by the Great East Japan Earthquake and tsunami two days previously. More