India has created the largest database of residents' identities on the planet

India has created the world's most ambitious national identification system, which uses biometric data to assign every citizen over the age of 18 a unique digital identity. Using their 12-digit number card, the 1.13 billion Indians using Aadhaar can access government services, pay taxes and open bank accounts. The system has faced opposition: critics argue that the ID program puts residents’ information at risk and deem it unconstitutional to demand that people hand over their data in order to access basic services.