"In some ways more painful is the fact that their experience appears to be fading from the collective memory of humankind. Having never experienced an atomic bombing, the vast majority around the world can only vaguely imagine such horror, and these days, John Hersey's Hiroshima and Jonathan Schell's The Fate of the Earth are all but forgotten. As predicted by the saying, 'Those who cannot remember the past are condemned to repeat it,' the probability that nuclear weapons will be used and the danger of nuclear war are increasing."