The story of the American hostages who spent 444 days in Iran is now more than a quarter century old and rarely told in the detail that it deserves. I should know. I was one of them. Because the 52 of us who suffered the ordeal now number only 42, I was excited to read Mark Bowden’s latest book, “Guests of the Ayatollah.” With many of us approaching our 60s, 70s and beyond, I had begun to believe the story would never be completely and properly told. Most Americans believe the beginning of modern terrorism against the United States began...