The lunch lines weren't moving fast enough for Linda Stoll, head of food programs at the Boulder Valley, Colo., school district. Because of that, kids had barely enough time to sit and eat before the lunch period was over. So, last year, Stoll began looking for ways to speed up the queue. She discovered that many students, especially kindergarteners, can't remember their six-digit ID number, which they're required to type into keypads at the end of lunch lines. She then found out that there was technology that would allow a scanner to identify a kid qualified for lunch with the swipe of a finger, moving him or her quickly along. It would help kids who regularly forget their lunch money, and it would potentially remove some of the stigma faced by children who receive special tickets for free or reduced lunch. She proposed the idea, believing it would be the perfect solution.

It turned out to be the perfect storm. Dozens of parents raised concerns about privacy. Many mentioned identity theft. Others expressed fear that immigrant children might be unfairly tracked by government. Eventually, Stoll's plan was scrapped.

Elementary and high school students in Pennsylvania, New Jersey and West Virginia use finger scans to pay for lunch — and even to check into class. But in many other states, the parental outcry about privacy has stopped the technology in its tracks. Michigan and Iowa have passed laws essentially barring schools from taking electronic fingerprints of children. Last month, Illinois enacted a law requiring schools to get parental consent before capturing an image of a child's finger.

Generally, student information collected by schools is protected by the federal government's privacy laws. So schools can't simply give away information gleaned from a student's fingerprint. Still, many parents and privacy law experts remain anxious about records accessible to companies managing a school's computer system — and whether that information can moved if that company is ever sold...

Full story: time.com