"praise the Lord and send us all your money"
It was founded by a science fiction writer called L Ron Hubbard, who was, incidentally, barred from entering Britain some time in the 1960s as an undesireable by the then Home Secretary, Roy Jenkins.
Their beliefs are something along the lines of that aliens landed in a giant spaceship at some point in the indeterminate past and wiped out the whole population by dropping a nuclear bomb down a volcano so we are all descended from genocidal extra terrestrial maniacs
Makes you wonder about Americans does'nt it? and Tom Cruise wonders why Nicole Kidman and Penelope Cruz dumped him?