Blum, Howard, 1948-

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February 25, 2014

31:35

During World War I, Germany Unleashed 'Terrorist Cell In America'

In Dark Invasion, 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.

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Howard Blum

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Howard Blum

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During World War I, Germany Unleashed 'Terrorist Cell In America'

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