During the past three decades, author and photo-historian David King has assembled the world's largest archive of doctored photographs, posters, and painting from the Soviet era. King began his collection during a trip to Russia in 1970, when he discovered that thousands of images of Stalin's victims had been lost to posterity--either by design or neglect. His collection has grown to more than a quarter million images, the best of which have been selected for "The Commissar Vanishes,"