STEM与日常科技·英语30篇（2）

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技术伦理：人脸识别进校园争议

Some schools use facial recognition to automate attendance, monitor cafeteria lines, or restrict access to secure buildings.
Proponents argue it improves safety by flagging unauthorized visitors and helps staff respond faster during emergencies.
Critics warn that constant surveillance teaches students to accept being watched — potentially normalizing authoritarian practices early.
Accuracy gaps persist: studies show higher false-negative rates for girls, darker-skinned students, and younger faces under changing lighting.
Schools rarely obtain informed consent from minors or explain how data is stored, shared, or deleted after graduation.
Privacy advocates stress that biometric data — unlike passwords — cannot be changed if leaked or misused by third parties.
Legal frameworks lag behind: most countries lack specific laws governing student facial data collection in educational settings.
Alternative tools — like ID cards with QR codes — offer similar convenience without permanent identity mapping or behavioral tracking.
Several school districts in the U.S. and EU have banned or paused such systems after parent protests and expert recommendations.
The core question isn’t just ‘can we?’, but ‘should we?’ — balancing security benefits against dignity, autonomy, and lifelong digital footprints.