Local hot spots
The biggest problem in the UK is masking - the lack of it. People just don't seem to understand the importance, and I blame the government for this. Right at the start, we were wishy-washy on masking, because the government was worried about the availability of PPE. But we aren't talking about PPE-grade masks. A simple cloth over the mouth and nose, and spectacles (or sunglasses) over the eyes will have a major effect.
My view is that every senior politician should wear a mask in public, whether they think it's necessary or not. And every junior politician, civil servant and government employee. Leadership is best done by example.
I doubt if it's feasible to make it compulsory. We tried that on public transport, and maybe that can be made to stick (I doubt it). It has to be done because people want to do it. Which means education and leadership by example.
America is a lost cause. Masking there has become a party political issue - can you believe that? And American infection numbers are rising horribly fast. Travel from America to Europe is being banned.
Let's not have the same thing happening here.