Lynne Black is one of those warriors who have added one more piece to the puzzle which was known as MACV-SOG and the secret projects that fought the silent, bloody contacts across the fence in the Second Indochina War. His details of a Saigon Headquarters debriefing by Chief SOG, Colonel Steve Cavanaugh, are the first, in-depth recorded recollections of one of those taut, sometimes combative, sessions between the desk jockeys and the men whom they...