For 10 points, name this American hate group known for burning crosses and wearing white robes.
This group's size in Indiana shrank after the rape and murder trial of its leader D.C. Stephenson. Catholics were admitted into this group in the 1970s under the leadership of David Duke. Members of this group committed the Greensboro massacre against the Communist Workers' Party and (*) bombed the 16th Street Baptist Church in Birmingham. For 10 points, name this American hate group known for burning crosses and wearing white robes.
This group's size in Indiana shrank after the rape and murder trial of its leader D.C. Stephenson.
Ku Klux Klan