NEARLY four years after north-eastern Japan’s huge earthquake, tsunami and nuclear meltdown on March 11th 2011, more than 170,000 people are still stuck in temporary housing along the ravaged coast. One of them is Sumiko Yoshida, a woman in her 70s who lives with her husband in cramped, mouldy quarters in Rikuzentakata, a fishing port that was washed away by the tsunami. More than 1,750 people die