On several anti-Catholic websites I come across pictures of John Paul II underneathe an upside-down cross. The anti-Catholic website then goes on to explain how an upside down cross is a sign of the Antichrist, or something like that.
Could someone please tell me if the upside down cross story has any validity? From what I understand, the upside down cross is used with John Paul II because Peter was crucified upside down–and so this symbol shows the apostolic link between John Paul II and Peter. However, it seems natural to think of an upside down cross as something unnatural and foreboding. In any case, perhaps someone can clear this charge up for me.