“But like Conrad’s shipmates on the Narcissus, I never saw any of them again.” James Salter closes his essay, “A Single Daring Act,” with that line about the end of his fighter pilot days in Korea. He was referring to the wingmen and pilots who depended on one another to stay alive. Once done with Korea he heard a familiar name now and then, but he didn’t hear from those who had been allies, close friends.