An obsession with other people's moral behavior.

Glenn Greenwald encapsulates the Foley scandal and why it is shaking the Republican party to the core:
"Mark Foley isn't some isolated case of shocking hypocrisy. Quite the contrary. People who have a publicly and vocally expressed obsession with other people's moral behavior and who want to use the power of the Government to enforce that obsession -- the Rick Santorums and Rush Limbaughs and Newt Gingrichs and Jim Bakkers and Ralph Reeds and Mark Foleys of the world -- are almost always fighting their own demons, not anyone else's. It is so important for them to parade around as moral protectors and moral warriors precisely because they have no other way to cleanse themselves, despite being in desperate need of a cleansing."