[The Archaeologist was a Spy], which is quite difficult to put down once opened, chronicles and assesses not only [Sylvanus] Morley's contributions to archaeology and intelligence, but also the organization, methods, and ventures of ONI clandestine operations in World War I. It makes a significant contribution to the study of American intelligence operations. - Military Heritage ""[Charles Harris and Ray Sadler] have written the most significant book available on U.S. intelligence during World War I in Latin America. For historians of intelligence agencies, this is a must read volume."" - William H. Beezley, professor of history, University of Arizona, and director of the Oaxaca (Mexico) Graduate Field School in Modern Mexican History ""In this remarkable story of a remarkable man and his colorful associates, Harris and Sadler bring to vivid life an unknown story of early American intelligence. They illuminate the start of today's vast spy apparatus."" - David Kahn, author of Hitler's Spies and The Codebreakers