From the article by Andrew Sullivan cited in the previous post:

I am horrified because it is horrifying, because for years now, this kind of thing has become commonplace at the very top of the conservative political apparatus, and because the invocation of violence in a political context is inherently corrosive of democratic values. When you add to this a party committed to the use of military force as almost a first option, and to torture as a legal method of interrogation, it is irresponsible not to worry about where this is headed.