In collected illustrations by survivors of the 1945 atomic bombing of Hiroshima, there are two striking pieces by Akiko Takakura, who was about 300 yards from the hypocenter. One shows a woman who is so thirsty, she is trying to drink black rain. Another shows a hand emitting blue flames. When we met Ms. Takakura in 2012, we were surprised to find that her story offered a glimmer of hope amid all