Detailed Instructions: In this task, you're given an article and an answer. Your task is to generate the question for the answer based on the given article.
Problem:Article: School districts are turning to high-tech solutions-from fingerprint scans to electronic cards - to track kids on school buses and keep them from getting off at the wrong stops. A fingerprint scanning system, approved this month for testing at the Desert Sands district, northeast of San Diego. Students will be scanned as they get on and off the bus. "Kids get lost. It happens in every school district, every year," says John DeVries, president of Global Biometrics Security, which developed the Biometric Observation Security System (BOSS) that's being tested. It happened Oct. 13 when a Prince George's County (Md.) school employee took a 5-year-old student to the wrong bus and the student got off several blocks from home. With BOSS, students' fingerprints are scanned and sent to a database. When they get off, they provide a "check out" print. An alarm sounds if the child tries to get off at the wrong place. The fingerprints are not stored, DeVries says. They are converted into a series of numbers that cannot be used to re-create the print, he says. Margaret Gomez of Palm Springs, Calif., whose daughter, then 6, was let off a bus about a mile from her home three years ago, supports the idea. "Anything is better than what they have in place now." Other tracking systems include the ZPass from Seattle-based Zonar Systems, which uses a programmed card carried by students or tied to a backpack. It is in about 30 districts, including North Kansas City Schools and Illinois School District 128 in Palos Heights, company executive Chris Oliver says. Paul Stephens, of the Privacy Rights Clearinghouse in San Diego, says tracking students is reasonable, but the data could fall into unauthorized hands. "What if a child predator was able to get access to this?" he says.
Answer: To prevent kids from getting lost.
Solution:
What is the purpose of schools turning to high-tech solutions?