The ACLU have produced countless law suits to get prayer and Bible reading removed from public schools. They have sued school boards and cities across the country in an effort to remove all traces of God from American society. They demanded removal of the Ten Commandments from schools, court houses and public parks, crosses from War Memorials, Christmas displays, etc. They claim that anything Christian is in violation of the "Separation of Church and State" clause. There is no such clause in the U.S. Constitution. You will find it however, in the constitution of the old Soviet Union.