As far as government databases go, they don't get any bigger than this: the Indian Government's 'Aadhaar' system contains the biometric details of more than one billion people.

It's hugely controversial, and the problems are mounting, with thousands of data breaches and reports Aadhaar is to blame for deaths from starvation.

So what's going on with the world's largest national ID system?

And are there lessons for us in Australia?





Featured:

Reetika Khera, Professor of Economics, Indian Institute of Management Ahmedabad and author, "Dissent on Aadhaar: Big Data Meets Big Brother"

Troy Hunt, security researcher