The Guardian: Covid app for England and Wales discontinued as usage dwindles 27 March 2023
The Economist: Why vaccine passports are causing chaos: The problem is with humans, not technology 26 October 2021
The Economist: Are vaccine passports a good idea? They are likely to make the biggest difference to international travel 13 March 2021
Wired: No, Dominic Cummings isn't plotting to bring back ID cards 4 September 2020
Wired: How the UK can reimagine data-enabled identity