Published during the First World War, this is a summary of the laws of the United States that relate to espionage. It gives an idea of the concern at the time of the possibility of enemy infiltration on American soil. This book is part of the World War One Centenary series; creating, collating and reprinting new and old works of poetry, fiction, autobiography and analysis. The series forms a commemorative tribute to mark the passing of one of the world's bloodiest wars, offering new perspectives on this tragic yet fascinating period of human history. Each publication also includes brand new introductory essays and a timeline to help the reader place the work in its historical context.