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In the 1990s, Daniel Carver had a phone number dedicated to an answering machine that would read off a racist tirade. In 1996, a phone hacker broke into his answering machine while Carver was away at a KKK rally, changing his white supremacist message to a parody of itself. Carver and the hacker subsequently appeared on the show, debating whether or not anyone had the right to change his "important message". In 1997, Carver appeared on The Jerry Springer Show in an episode entitled "Quit The Klan". Unsurprisingly, Carver did not quit the Klan.
References
Williams v. Southern White Knights, et al. (United States District Court for the Northern District of Georgia 1987-02-24), Text.
Applebome, Peter (1989-12-23). "Atlanta in Contrast: Civil Rights and Racial Hate". The New York Times. p. 16.