Don Lee reports:
At first, it just seemed cool.
When facial recognition cameras were installed at a century-old high school here in eastern China, students got in and out of campus, picked up lunch, borrowed books and even bought drinks from a vending machine just by peering into the cameras.
No more worrying about forgetting to carry your ID card.
But last March, the cameras appeared in some classrooms — and they did a lot more than just identify students and take attendance.
Read more on the Los Angeles Times.