See this truth-telling note, from a teacher to a mother, about why he was putting her son in detention. Need to know more about public-ed? (Thanks to Thomas A.A. Olson.)
UPDATE from Thomas:
Lew: There are actually two sickening aspects to this the obvious one of a teacher who is clearly Wrong in Fact but insists on playing the authority card, and the sad fact that every student in his class, save the one facing detention, just blindly sucked in the wrong data without inquiry. Shutting down government schools needs to be top priority