UN urges Japan nuclear safety overhaul after Fukushima

TOKYO - UN atomic safety experts said Japan underestimated the threat from a killer wave to its crippled Fukushima power plant and urged sweeping changes to prevent a repeat of the crisis that triggered the word's worst nuclear disaster since Chernobyl.
In a report presented to Prime Minister Naoto Kan on Wednesday, an 18-member team from the International Atomic Energy Agency (IAEA) called for a rethink of the way nuclear facilities are built, run and regulated.