The Nazi Spy Ring in America: The Third Reich's Agents, the FBI, and the Case That Stirred the Nation

Published: July 30, 2020, 6:30 a.m.

In the mid-1930s, just as the United States was embarking on a policy of neutrality, Nazi Germany embarked on a program of espionage against the unwary nation. Hitler\u2019s attempts to interfere in American affairs by spreading anti-Semitic propaganda,...