Gen. David Petraeus is the subject of The Insurgents: David Petraeus and the Plot to Change the American Way of War, a new book by Fred Kaplan. Shah Marai/AFP/Getty Images hide caption

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Visitors take in a re-created scene at the massacre museum at Vietnam's My Lai village. Researcher Nick Turse says atrocities of all kinds were more common in the Vietnam War than most Americans believe. Hoang Dinh Nam/AFP/Getty Images hide caption

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Neil Gaiman is also the author of Coraline, American Gods, Anansi Boys,Stardust and M Is for Magic. He was born in Hampshire, England, and now lives near Minneapolis. Darryl James/Getty Images hide caption

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Beams of sunlight stream through the windows of Grand Central Terminal, circa 1930. Hal Morey/Getty Images hide caption

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