Shortly after 7 a.m. on March 12, Prime Minister Naoto Kan confronted Masao Yoshida, director of the Fukushima No. 1 nuclear plant, at the compound in Okuma, Fukushima Prefecture.
Kan flew from Tokyo by chopper to the crippled nuclear plant, desperately wanting to ask one critical question: Why can't Tokyo Electric Power Co. still open valves to release rising steam inside reactor No. 1 to avoid a looming meltdown?
The March 11 megaquake and monster tsunami had already knocked out all the power supply and critical cooling systems of the plant, pushing temperatures and pressure inside reactor 1 to an acutely dangerous level.
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