In his latest book, award-winning author Greg Mitchell probes a turning point in U.S. history: the suppression of film footage, for decades, shot by a U.S. Army unit in Hiroshima and Nagasaki—with staggering consequences even today. This is a detective story, a profile of two remarkable military officers, and one of the last little-told stories of World War II, with far-reaching impact. The shocking cover-up even extended to Hollywood—with President Truman censoring an MGM film. Mitchell, co-author of the classic "Hiroshima in America" and eleven other books, has written about elements of this story for leading newspapers and magazines, but now tells the full story, based on new research—from the Truman Library to Nagasaki.