Includes diverse materials written by George Vickers throughout his career, chiefly published columns, articles, and essays on Central American politics and the New Left, often accompanied by draft materials and related correspondence. A substantial portion of this series entails working files in support of an unrealized monograph on David Truong (Truong Dinh Hung), a Vietnamese national whose participation in US activism against the Vietnam War led to charges of espionage, placing him at the center of a controversial trial that resulted in his conviction alongside US intelligence agent Ronald Humphery. The files supporting this book project are arranged in the order defined by Vickers' type-written file inventory, and include: Vickers' correspondence and interviews with David Truong, as well a proposal, draft materials, and a contract defining rights over the planned work; background materials relating to Truong's early life, migration status, and intelligence activities, including original correspondence in French and Vietnamese between Truong and others; materials on Truong's father, a lawyer and politician in South Vietnam; materials on Ronald Humphery; materials on US counterintelligence agent Dung Krall; and trial documents including US intelligence wiretap transcripts and testimony from both defendants as well as other witnesses for the defense and prosecution.