This is a very interesting history of the Rosenberg case from the point of view of David Greenglass, Ethel Rosenberg's brother... I would recommend it to all Rosenberg case buffs for its portrait of Ethel's family relationships and background... Greenglass comes off as one strange and unlikeable guy...I do have a couple of criticisms of the book. For a NY Times editor, Sam Roberts, the author doesn't write all that well. Some of his sentences are confusing with pronouns that refer back to previous sentences, only the reader doesn't know to which person previously mentioned. There are a also number of passages which seem to me to contain confusing non-sequitors... reading The Brother is a bit like coming in in the middle of a movie.