They stockpiled guns and ammunition. They built homemade bombs. They had a hit list of a dozen members of Congress who were targeted for assassination. They believed themselves to be patriots, with soldiers and police officers among their ranks. They rallied under the motto of America First, but they planned to overthrow our Constitutional government and install a fascist dictatorship. Believe it or not, I’m not talking about the insurrection on January 6, 2021, but instead a plot that the FBI uncovered in January 1940. The subsequent investigation threw a spotlight on a group called the Christian Front that made its headquarters at Boston’s Copley Plaza hotel, promoting violent attacks on Jewish Bostonians while accepting covert funding and support from a Nazi spymaster who flew the swastika proudly from his home on Beacon Hill.