“In God We Trust” on our coins and bills. “One nation under God” in the Pledge of Allegiance. The Ten Commandments posted on schoolroom walls, in courthouses, and in the U.S. Supreme Court building. Prayers by student leaders at high school graduations and football games.  The “Mount Soledad Cross” erected on public land above San Diego.

These symbolic affirmations of faith—and others like them—involve big public controversies. Read more