Vengeance of Tyrants is a historical tale of four generations of two American families.The 130 year American experience includes the true history of social science manipulation of American education, law, medicine, and religion. A secretive Association plans assaults on the faith and freedom of American families. The book also describes; the disregard of communists in government and infiltration exposed by the Venona Project, the shame of compulsory sterilization, eugenics, and phrenology by progressive leaders the Russian communism and German Naziism led by atheist tyrants seeking vengeance against ordinary families the social experimentation and attack on religion by liberals in America following the war.