Japan's defenses against a major tsunami and the safety of its nuclear plants were thrown into further doubt after two official studies predicted much higher waves could hit and that Tokyo quake da

Angry parents of children in Japan's Fukushima city marched along with hundreds of people on Sunday to demand protection for their children from radiation more than three months after a massive quake and tsunami triggered the worst nuclear disaster in 25 years.

"We want our lives back, we want to live like before the quake in happy families," said Hiroko Sato who marched in heavy rain with her