On August 6 last year, atomic bomb survivors held their annual commemorative lantern-floating ceremony at the Hiroshima Peace Memorial Park in Japan. Two months later, their group, Nihon Hidankyo, won the Nobel Peace Prize for decades of campaigning against nuclear weapons. Fifteen years earlier, in Chongshan village in China’s eastern Zhejiang province, Wang Jinti took his last breath. Wang died in near-total obscurity, never having received an apology or compensation for the suffering he...