The Aryan Nations — one of the most notorious neo-Nazi groups in the United States — is moving its national headquarters to Kansas City, Kan., causing alarm among civil rights groups. The group's members, who believe that Jews are “the children of Satan” and African-Americans are “beasts of the field,” chose Kansas City, Kan., because of its central location, said “High Counsel” August B. Kreis III. Kreis, who lives in Florida, said Wednesday that the Aryan Nations national director, Charles Juba, recently relocated to the metropolitan area from Pennsylvania with the aim of enlisting new members. It was unclear...