One generation held the book and the author in reverence. And with Tom Roston’s new book The Writer’s Crusade and the Many Lives of Slaughterhouse Five a new generation is discovering the unique importance of Vonnegut’s vision or war and humanity’s potential. At the time  Vonnegut wrote this classic World War Two fiction mixed with nonfiction,  PTSD was unknown. Today we ask what is sane and what insane about war. Roston’s book about a book shares what Vonnegut meant by the cryptic phrase “So it goes.” And he examines the depression with which Vonnegut lived.