I think it’s worse than a conspiracy though:
That’s what makes it really creepy to me.
It’s perfectly normal to consider teenagers a threat in general and to allow extra scrutiny against them compared to many other groups of people.
Few think twice about it. Average person says, “Well, that’s creepy – hope it doesn’t happen (to me / at my school / to my kids / my teachers wouldn’t do that so I’m ok) – but I’m glad they’re spying on _other people_ so they can “keep our country safe.”
People accept less freedom for a sense of more safety.
But it’s still wrong. A conspiracy implies that they know what they’re doing is wrong, but they do it anyway. I think in this case unfortunately, most of the doers and people who have to deal with this alike, they don’t know what they’re doing is wrong.