"In defending school choice or God in the Pledge of Allegiance, it is too easy to find oneself on the wrong side of the wall of separation between church and state. But as Professor Philip Hamburger reveals in his timely and well-researched tome, Separation of Church and State, few know the secret history of this American doctrine." ,...., "Hamburger notes that the extent of the connection between anti-Catholicism and the growth of the ideal of separation of church and state has been expunged from the separation myth.