Rajat Khapre from Delhi wants to know: "How do biometric facial recognition systems work?"
Privacy activists hate the idea of using biometric ID software in public places. But DW's Jefferson Chase says that it's better to test whether it can help prevent terrorism and major crime than to reject it out of hand.
A new study by Swedish researchers suggests humans can tell, through visual cues alone, when another person is battling a bacterial infection. Biometrics expert Kevin W. Bowyer tells DW whether smartphones can do better.
For six months, cameras have been scanning passengers' faces at a Berlin train station. It's the beginning of the end of democracy, DW's Martin Muno writes.
Police are recruiting subjects to test biometric recognition systems at a Berlin train station. Data protection advocates are wary, but police and volunteers say the pilot project will help fight crime.
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