Obama, el primer presidente de EE.UU. que visita HiroshimaFor nights afterward, I couldn"t sleep. I couldn"t get his images out of my mind: people going about their daily lives; the sudden fireball so hot it vaporized bodies, leaving just shadows on a wall; the silent, deadly radiation that sickened and killed tens of thousands more. I had reason to be afraid. By the time I was in high school, the United States had more...