India has brought futuristic identification and recognition into reality with a scheme called Aadhaar, where iris scans, fingerprints and photos are all used together.
It promises an ease of access to government financial assistance and lowering the amount of fraud currently taking place in the schemes.
However, attempting to record all 1.2 billion Indian residents is a difficult task.
Marc Cieslak reports on why it is hoped that this technology will make it impossible to take money away from the people who really need it.
How can 1.2bn people be identified quickly?
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