Ku Klux Klan
The Ku Klux Klan (KKK) was determined to be a "terrorist organization" in 1870 by a federal grand jury,[39] and the FBI has been investigating crimes by white supremacy extremists including Klan members since the early 1900s.[40] During reconstruction at the end of the Civil War the original KKK used domestic terrorism against the federal government and against freed slaves. During the 20th century, leading up to the Civil Rights Movement, unrelated KKK groups used threats, violence, arson, and murder to further their anti-Black, anti-Catholic, anti-Communist, anti-immigrant, anti-Semitic, homophobic and white-supremacist agenda. Other groups with agendas similar to the Ku Klux Klan include neo-Nazis, white power skinheads, and other far-right movements.