Gundersen analyzes new pressure and temperature data from the Fukushima reactors and containments.

TEPCO recently denied that the fuel pool in Unit 4 was experiencing a partial inadvertent criticality, despite the finding of radioactive iodine-131 (an isotope with an eight-day half-life). The utility blamed the iodine on deposition resulting from the explosion of the other buildings. Gundersen takes an in-depth look at TEPCO's Theory.

Lastly, he discusses the FDA decision not to monitor fish for radioactivity.

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