Thomas W. Davis (Tommy Davis) in interview on CNN, when asked if "... the basic tenet of the Church of Scientology is to rid the body of space-alien parasites, to clear oneself". — John Roberts (May 8, 2008). Scientologists decry threats: CNN's John Roberts talks to a Scientology spokesman who says an anonymous group is terrorizing the church. CNN. Retrieved on 2009-03-08.