Church officials say that some of those people have advocated violence against Scientologists.
But it certainly can't come right out and advocate force and violence.
If he were to advocate violence, which Hitler had done many times before 1933, that would be the time to step in.
But the diverse student body had many viewpoints, including advocating violence.
According to a 1969 study, no major labor organization in American history has ever advocated violence as a policy.
"I personally don't want anyone coming to Canada who will come here and advocate violence against women", he said.
The site also included a disclaimer, saying that the group did not advocate violence.
He said the station now has a formal policy against advocating violence or retribution.
But the report says that many of those held were neither advocating nor practicing violence.
Anyone who says a word against the vote almost seems to be advocating violence in the streets.