Facing off against David Silverman on the topic of the war on December, O'Reilly at one point in the discussion declared, "Christianity is not a religion, it's a philosophy." Odd words coming from a staunch Catholic. Yet, there appears to be a devious strategery here. To start with, the First Amendment states that the government cannot endorse any religion, yet it says nothing about philosophies, so the "philosophical" principles of christianity should be acceptable. O'Reilly then goes on to say that Methodism is not ok, because that is a religion. So the plan here is to separate christianity from all of its denominations. Those are all religions, so they can keep their tax exemption, but christianity itself is a philosophy, so the government is allowed to endorse that. Oh, and atheists are fascists, he says. Whatever that means.