A Philadelphia suburban school district gave laptops with webcams to all 1800 high school students. They didn’t tell them that the webcams could be remotely turned on by the school. The school now says it was to find the laptops if they were stolen.
People found out about it when the school disciplined a kid for “improper behavior in his home” and used a webcam photo as evidence. They're being sued.
The articles I read about it said the actual behavior wasn't described, but the suit says that "'Should discovery disclose that Defendants are in possession of images constituting child pornography' as defined by Pennsylvania law, the family reserves the right to add that to its list of complaints."
There was no word on whether the high schools in question teach about the fourth amendment in civics classes, nor whether the administrators had read the constitution.