Dark Invasion
From Nine to Noon 7 March 2014
Howard Blum is an American journalist whose latest book is Dark Invasion 1915: Germany's Secret War and the Hunt for the First Terrorist Cell in America, the true-life tale of German spying and sabotage on American soil during World War One and the campaign and the effort of American law enforcement to crack the ring.
The images in this gallery are used with permission and are subject to copyright conditions.