by Harumi Ozawa with Sara Hussein in Tokyo HISANOHAMA, Japan (AFP) — Japan on Thursday marks 10 years since the worst natural disaster in the country’s living memory: a powerful earthquake, deadly tsunami and nuclear meltdown that traumatized a nation. Around 18,500 people were killed or left missing in the disaster, most of them claimed by the towering waves that swept across swathes of the northeast coast after one of the strongest quakes ever recorded. […]