Christians: What are some reasons prayer in a public school is OK?

Consider this: "School sponsorship of a religious message is impermissible because it sends the ancillary message to members of the audience who are nonadherents that they are outsiders, not full members of the political community, and an accompanying message to adherents that they are insiders, favored members of the political community. " U.S. Supreme Court ruling, Santa Fe v. Doe, (2000).