Extreme right-wing groups have always been a part of the American religious and political landscape. The era between the world wars, especially the 1930s, was a particularly volatile period, and by 1940, racist, nativist and fascist groups had become so visible as to arouse public fears of insurrection and sabotage. In "Hoods and Shirts", Philip Jenkins uses developments in Pennsylvania as a case study of the local activities and broader significance of organizations such as the Ku Klux Klan, the Italian Black Shirts, the Silver Legion, the German-American Bund, and Father Coughlin's Christian Front. Pennsylvania's cities were a stronghold of several of the most active extremist movements, and Jenkins argues that while the threats they posed were often exaggerated to benefit the solidarity of the political mainstream, a loose coalition of dozens of these groups nevertheless constituted a formidable political presence in the state. In chapters on each of the major organizations, Jenkins traces their common commitment to a fascist agenda as well as the ethnic and religious differences that divided them.