I don't know much about Scientology, but I know that Tom Cruise is a whack-job. Wide eyed, deer in the headlights true believers are scary to behold, whether they are scientologists, christian fundamentalists, or Muslims. Full disclosure - I'm an atheist, but not a socialist. I'm into warm summer rain, big sacks of money, and spooning.
Here's Cruise (let it play for a few seconds, because it initially says that the video has been removed), and here is a nice parody (click on the link below).