Scalia on separation of church and state

This regressive Justice of our Supreme Corp thinks that separation of church and state does not mean the state cannot favor religion over non-religion. He says it's nowhere in the Constitution and that it's just fine for state legislatures to open with prayer and for schools to do the same. Which of course should only apply to Christian demonstrations; I'm sure he'd be aghast and find plenty of Constitutional authority to prevent Muslims from so doing.