William J. Brennan, Jr., Aguilar v. Felton — Opinion of the Court
“ In addition, the religious school must obey these same agents when they make determinations as to what is and what is not a "religious symbol," and thus off limits in a Title I classroom. In short, the religious school, which has as a primary purpose the advancement and preservation of a particular religion, must endure the ongoing presence of state personnel whose primary purpose is to monitor teachers and students in an attempt to guard against the infiltration of religious thought. ”
