Most Secret and Confidential

In today's world of satellites and electronic eavesdropping it is hard to appreciate the difficulties involved two centuries ago in collecting and disseminating secret intelligence in time of war. This book treats readers to a close-up look at the ingenious methods used to obtain and analyze secret material and deliver it to operational forces at sea. It brings together information from a variety of sources to provide the first concise analysis of the use and development of intelligence in the d