The part I do not understand is that our society and the laws that we live by are based on Christianity.  Basically, live right or you will be punished. If we did not have these laws, our way of life as we know it would cease and lawlessness would prevail.  I can see allowing prayers from all of the major religious faiths as they all espouse "the good" and reject "evil", but to allow "pro evil" goes against the nature of government. We can't allow it at a meeting of a governing body. That is the argument that the government should have used to prevent this.
Satan has no laws and thus, no place in our society.