In defense of them; they probably get tested everyday but as the old saying goes - monkey see, monkey do..

Masks! Does it matter if some of them go down with C19, will they be missed?
Gove praying to keep his job,
Name cards so that they can remember who they are, no-one else can read them.(maybe even their owners)
hands on chin because the main monkey has that pose.
so many mates got jobs, the table is not big enough.
this is not a meeting as I remember them, too many people. This is a presentation, the only way the top monkey can get his way. Nothing democratic going on here.

Those are bacterial samples, not viral. Nonetheless, it graphically shows how bacterial spread is reduced by mask wearing but can that be extrapolated to much smaller viral pathogens? It would seem so.

The UK is another train set, rightly or wrongly their rules.

 That image kind of fits in with what I saw in central London over the weekend  - very very little mask wearing happening now apart from on the tube/buses, where compliance was probably around 80% ish.

 Apart from that of the stores were simply displaying notices asking, not demanding, that they were worn them so generally people didn’t, nil in restaurants, even when away from your table and obviously no checking of vaccine passports.