Since 1866, the Ku Klux Klan has been able to muster three distinctive and sustained campaigns of terrorism, commonly referred to as the three "waves" of Klan violence. The first occurred between 1866 and 1871, the second between 1915 and 1928, and the third from roughly 1954 to the mid-1960s. Subsequent to the third wave, the Klan unsuccessfully attempted another resurgence in the mid-1970s/early 1980s but was snuffed out before a campaign could...