India's biometric identity cards spark privacy concerns
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In India, debate is raging over what's been dubbed "the world's largest mass surveillance project". Over a billion Indians now have identity cards with unique ID numbers associated with their biometric information. The card is essential for many things in daily life, from opening a bank account to accessing welfare schemes. The government says the system will help stamp out corruption and increase digital transparency, but critics denounce a case of "Big Brother". Our correspondents report.