This is the story of the U.S. Navy's communications intelligence (COMINT) effort between 1924 and 1941. It races the building of a program, under the Director of Naval Communications (OP-20), which extracted both radio and traffic intelligence from foreign military, commercial, and diplomatic communications. It shows the development of a small but remarkable organization (OP-20-G) which, by 1937, could clearly see the military, political, and even the international implications of effective cryptography and successful cryptanalysis at a time when radio communications were passing from infancy to childhood and Navy war planning was restricted to tactical situations. It also illustrates an organization plagues from its inception by shortages in money, manpower, and equipment, total absence of a secure, dedicated communications system, little real support or tasking from higher command authorities, and major imbalances between collection and processing capabilities. It explains how, in 1941, as a result of these problems, compounded by the stresses and exigencies of the time, the effort misplaced its focus from Japanese Navy traffic to Japanese diplomatic messages. Had Navy cryptanalysts been ordered to concentrate on the Japanese naval messages rather than Japanese diplomatic traffic, the United States would have had a much clearer picture of the Japanese military buildup and, with the warning provided by these messages, might have avoided the disaster of Pearl Harbor.

For 150 years, U.S. Government Printing Office (GPO) has produced the digital documents of democracy crucial to an informed citizenry. Keeping America Informed: the U.S. Government Printing Office, 150 Years of Service to the Nation, published to mark GPO's 150th anniversary as a Federal agency, tells the story of this unique organization through a readable and concise narrative and numerous historic photographs, many of them never before published. This handsome new volume provides a panoramic view of GPO, which opened its doors for business on March 4, 1861, as Abraham Lincoln was inaugurated as the 16th president of the United States. After a description of the previous history of “publick printing” and the founding of GPO, Keeping America Informed covers the agency's physical and technological growth in the Gilded Age, its reform during the Progressive Era, and its crucial role in supporting the Government's efforts to grapple with the Great Depression and two world wars. Post-World War II, the book describes GPO's transition from traditional printing to the digital technology of today. It also highlights the hugely significant role the agency has played in the dissemination of federal Government information through its publications sales and Federal depository library programs. Much of the information in Keeping America Informed is new, the product of the latest research into GPO's history. Above all, its authoritative text and unique images depict the enormous contribution of its employees, past and present, to the well-being of the American people and nation.