The Invisible Weapon Telecommunications and International Politics, 1851-1945

A vital instrument of power, telecommunications is and has always been a political technology. In this book, Headrick examines the political history of telecommunications from the mid-nineteenth century to the end of World War II. He argues that this technology gave society new options. In times of peace, the telegraph and radio were, as many predicted, instruments of peace; in times of tension, they became instruments of politics, tools for rival interests, and weapons of war. Writing in a lively, accessible style, Headrick illuminates the political aspects of information technology, showing how in both World Wars, the use of radio led to a shadowy war of disinformation, cryptography, and communications intelligence, with decisive consequences.

Daniel R. Headrick is Professor Emeritus of Social Science and History at Roosevelt University and author of numerous books on world history, including Power over Peoples: Technology, Environments, and Western Imperialism, 1400 to the Present, Technology: A World History (OUP, 2009), When Information Came of Age (OUP, 2000), The Tentacles of Progress (OUP, 1988), and The Tools of Empire (OUP, 1981).