autz: The only thing there I can really complain about is this:
If these cameras are being installed at taxpayer expense, ostensibly for the safety of students, and administrators can view the recordings at any time, then parents, students, and teachers ought to be able to view the recordings as well. I don’t see it as a violation of privacy, because classrooms and hallways are essentially public places anyway. Certainly there’s no expectation of privacy in these places.