My favorite coworker relates a story of interviewing a potential babysitter, who she found out was a member of the Catholic organization Opus Dei. Though she is a practicing Catholic herself, she clearly found it quite creepy. Listening to her, it was clear that she was taking Dan Brown's portrayal from The DaVinci Code at face value. I suggested that Dan Brown may not be right on this, but she protested that he had "done research." Ah well.
The irony is that she is very much into Native American religious practices, and goes to Sweat Lodge ceremonies. We look at discomfort in religion differently, I guess, depending on whether they are seen are persecutor religions or victim religions. Actual historical data need not intrude.