Pulitzer Prize -- winning journalist John Hersey caused a sensation when he published "Hiroshima", the first account for American readers of the horror experienced by victims of the 1945 Hiroshima atomic bomb attack. "Hiroshima" stunned readers with its descriptions of the terrible aftermath of the bombing, yet Hersey never spoke about his experience in Hiroshima. Intrigued, his grandson Cannon Hersey visited present-day Hiroshima to trace his grandfather's footsteps as he worked to understand his grandfather's feelings when he was writing the book.