``Of all the spies in America,'' said John Walker's KGB handler, ``you, John, are the best!'' In this journalistic account Earley (a former Washington Post staff writer) examines up close the evolution and self-destruction of this damaging collection of banal traitors. The story is sprinkled with tales of dead drops and top secret lists and packed with profanities. What Earley lacks in analysis, he makes up for in storytelling. Based on interviews with Walker, his family, and Jerry Whitworth (another key conspirator), and trial transcripts, this engrossing book compares favorably with Howard Blum's I Pledge Allegiance: The True Story of the Walker's (LJ 11/1/87) in discussing the psychological impact of the case. Recommended for general readers.John Yurechko, Georgetown Univ., Washington, D.C.