Tsunami threat 'underestimated'

UN inspectors criticised Japan today for under-estimating the threat of a devastating tsunami on its crippled Fukushima Dai-ichi nuclear plant, but praised its overall response to the crisis as exemplary.

The preliminary report by a team from the International Atomic Energy Agency also said the tsunami hazard was under-estimated at several other nuclear facilities in Japan, and called for experts worldwide to learn from the disaster to avert future accidents.