Japan earthquake: tsunamis pose no threat, official guidelines stated

Japan's atomic safety watchdog declared that tsunamis posed no threat to its nuclear reactors in official guidelines published in 2006.
The guidelines on earthquake-proofing nuclear facilities, issued by Japan's Nuclear Safety Commission, stated that the country's nuclear facilities would "not be significantly affected" in the event of a tsunami.
Experts claimed that the "robust sealed containment structure around the reactor would prevent any damage to the nuclear part" and that "no radiological hazard would be likely".
Documents seen by The Daily Telegraph also disclose that Japan faced detailed questioning by the international nuclear safety watchdog over whether its nuclear facilities could withstand a tsunami, and repeatedly gave assurances that there was no credible threat.