Why is the Ku Klux Klan so infamous, even around the world, but not the Black Legion?

by dslyker

I just heard about the Black Legion, and they seem almost worse than the KKK. They were an offshoot AFAIK, yet they are almost unheard of. Why is this?

JosephWilliamNamath

Follow up: Is the KKK actually that well known outside of the US?