Jessica Mitford, the great muckraking journalist, was part of a legendary English aristocratic family. Her sisters included Nancy, doyenne of the 1920s London smart set and a noted novelist and biographer; Diana, wife to the English fascist chief Sir Oswald Mosley; Unity, who fell head over in heels in love with Hitler; and Deborah, later the Duchess of Devonshire. Jessica swung left and moved to America, where she took part in the civil rights movement and wrote her classic exposé of ...