Damage to Religious Property - whoever, in any of the circumstances intentionally defaces, damages, or destroys any religious real property, because of the religious character of that property, or attempts to do so; or intentionally obstructs, by force or threat of force, any person in the enjoyment of that person's free exercise of religious beliefs, or attempts to do so; shall be punished.
Source: http://www.law.cornell.edu/uscode/text/18/247
Source: http://www.law.cornell.edu/uscode/text/18/247