Alito defends the "Bong Hits for Jesus" kids?

My friend Pat notes a curious quote from Justice Alito, via the AP.

Justice Samuel Alito, who wrote several opinions in favor of student speech rights while a federal appeals court judge, seemed more concerned by the administration's broad argument in favor of schools than did his fellow conservatives.

''I find that a very, a very disturbing argument,'' Alito told Justice Department lawyer Edwin Kneedler, ''because schools have ... defined their educational mission so broadly that they can suppress all sorts of political speech and speech expressing fundamental values of the students, under the banner of getting rid of speech that's inconsistent with educational missions.''

I wonder if Alito has prayer in school on his mind, given that conservatives often view that as a free speech issue?