GPS Declassified examines the development of GPS from its secret, cold war military roots to its emergence as a worldwide consumer industry. Drawing on previously unexplored documents, the authors examine how military rivalries influenced the creation of GPS and shaped public perceptions about its origin. Since the United States first program to launch a satellite in the late 1950s, the nation has pursued dual paths into space one military and secret, the other scientific and public. Among the many commercial spinoffs this approach has produced, GPS arguably boasts the greatest...