We have a dynamite book excerpt on NRO this morning. It’s from Spies: The Rise and Fall of the KGB in America, by John Earl Haynes, Harvey Klehr, and Alexander Nassiliev — the book that has kicked up a fuss over I. F. Stone’s Soviet connections. Our excerpt involves a much better-known American writer: “The mere fact that Ernest Hemingway toyed with Soviet intelligence is one of the more surprising revelations in the KGB files,” write the authors. They lay out the facts, based on documents smuggled out of Russia.