Re: "appalled that [city mayor] Sadiq Khan has approved such....surveillance technology for London"
ID Card gate? Its one thing I would bring in - it makes it a lot easier to prove who you are than proving utility bills etc.... of course until Boris 'got Brexit done' they would have doubled as a travel document in the EU.
I live in an EU country (Malta) - everyone has ID cards (although technically mines an eResidency Permit) - the effective difference is I can't use it instead of a passport.
It also ties into my driving licence as the driver number is the same as the ID card number.