
Will track and trace really work?
I wonder if Matt Hancock, or anyone else who has been developing the track and trace system for coronavirus, has set themselves this little test: get a blank sheet of paper and write down the names, addresses and telephone numbers of the people you sat next to on your last tube, train or bus journey, and the same for people on the surrounding tables on that last restaurant meal before lockdown. Er, where to start? As it happens I can name one fellow passenger on my last train journey: Lord Smith of Finsbury was sitting across the aisle – talking on his phone, interestingly enough, about a colleague who was
