Summary: In <em>Dark Invasion</em>, Howard Blum explores the campaign of sabotage that Germany inflicted on an unsuspecting U.S. As ships and factories blew up, "no one really suspected a spy network," he says.
Summary: In <em>Dark Invasion</em>, Howard Blum explores the campaign of sabotage that Germany inflicted on an unsuspecting U.S. As ships and factories blew up, "no one really suspected a spy network," he says.