AP: Fukushima tsunami plan a single page 28 May 2011 Japanese nuclear regulators trusted that the reactors at the Fukushima Dai-ichi complex were safe from the worst waves an earthquake could muster based on a single-page memo from the plant operator nearly a decade ago. In the Dec. 19, 2001, document -- one double-sized page obtained by The Associated Press under Japan's public records law -- Tokyo Electric Power Co. rules out the possibility of a tsunami large enough to knock the plant offline and gives scant details to justify this conclusion, which proved to be wildly optimistic.