Here is how it’s being done in Britain: Britain creates a more hostile environment for immigrants.

“Promiscuity or sexual preference within the law. Drinking or gambling. Eccentricity, including beliefs, appearance and lifestyle.” These are just a few of the criteria that Britain can use to deny citizenship, if “by the scale and persistence of their behaviour, [applicants have] made themselves notorious in their local or the wider community.”

Reading the wrong sort of blog will soon be part of the protocol. Meanwhile, the Chinese are leading the way.

In the West, we have tended to leave it to the private sector, with Facebook, Twitter and Google deciding what you should know, what you can say and what information you can access. We are only however just starting. Lots more to come.