Moving people around moves Covid-19 around. This brute fact has to be squared with the need and desire of people to travel. Locations are opening up and closing down in response to changing conditions caused by the virus. Ireland, for example, has speeded up its reopening, while countries like Australia, Hong Kong and Serbia have had to lock down again.  While travel of all kinds is returning as a feature of our everyday experience, Covid-19 has made the choice to travel fraught. The Minister for Foreign Affairs tells us the virus is on the rise in 11 countries in the…