JAPAN-DISASTER-ACCIDENT-NUCLEAR

Cherry blossom covers a tree in Natori city, Miyagi prefecture on April 18, 2011. Japanese lawmakers grilled the president of the company at the centre of the world’s worst nuclear crisis since Chernobyl, demanding he take responsibility for the disaster. AFP PHOTO / YASUYOSHI CHIBA (Photo credit should read YASUYOSHI CHIBA/AFP/Getty Images)