> If you would turn it around and imagine a world without paper passports and government issued id's - what would you use as unique identifier for a person? I

> If you would turn it around and imagine a world without paper passports and government issued id's - what would you use as unique identifier for a person? I'm not sure... but I'm also convinced that 'private corporation issued id' isn't fundamentally superior to 'government issued id' and has some challenges in terms of accountability.