They are her characters and her catastrophes, but Margaret Atwood says she sometimes frightens even herself when her imagination gets going. The latest dystopian speculations from this celebrated Canadian writer can be found in her novel “The Year of the Flood” (Nan A. Talese/Doubleday), to be published in the United States on Tuesday. It is a tale of survivors in a violent future society after a catastrophic pandemic, with genetically engineered humans and animals, an environment in tatters... read more