Scientology uses semantic stopsigns:

http://www.garloff.de/kurt/sekten/mind1.html

Loaded Language is a term coined by Dr. Robert Jay Lifton, a psychiatrist who did extensive studies on the thought reform techniques used by the communists on Chinese prisoners. Of all the cults in existence today, Scientology has one of the most complex systems of loaded language. If an outsider were to hear two Scientologists conversing, they probably wouldn't be able to understand what was being said. Loaded language is words or catch phrases that short-circuits a person's ability to think. For instance, all information that is opposed to Scientology, such as what I am writing here, is labelled by Scientologists as "entheta" (enturbulated theta - "enturbulated" meaning chaotic, confused and "theta" being the Scientology term for spirit). Thus, if a Scientologist is confronted with some information that opposes Scientology, the word "entheta" immediately comes into his mind and he/she will not examine the information and think critically about it because the word "entheta" has short-circuited the person's ability to do so. This is just one example, of many, many Scientology terms.