By the summer of 1915, Germany was faced with two major problems in fighting World War I: the British blockade and how to disrupt the British supply line across the Atlantic. Their solution was to create a U-boat fleet and employ German agents to carry out sabotage missions in the U.S. Dwight R. Messimer discusses these two solutions and one man behind them: Paul Hilken, in Baltimore. A book signing follows the program. Make your free reservation. To access live, real-time captioning, please click on the link below or insert the following URL into a separate browser window: www.streamtext.net/text.aspx?event=051815nara1200pm