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TechStuff Classic: Biometrics: Digital Fingerprinting

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How has the Digital Age improved the centuries-old practice of fingerprinting? We explore the history of fingerprint tech and explain how modern scanners use optics, capacitance, heat and ultrasound to create prints that are harder than ever to hack.

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Behind every innovation is a new kind of power. TechStuff unpacks how technology reshapes influence, 
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