TIMOTHY EGAN is a Pulitzer Prize–winning reporter and the author of eight other books, most recently The Immortal Irishman, a New York Times bestseller. His book on the Dust Bowl, The Worst Hard Time, won a National Book Award for nonfiction. His account of photographer Edward Curtis, Short Nights of the Shadow Catcher, won the Carnegie Medal for nonfiction. He writes a biweekly opinion column for the New York Times.