Andrei, easily the most intelligent and sophisticated of the long-lasting sycophants, could well have behaved decently – in return for what favours o… - John Sweeney

One simple yardstick of someone's life, of the good or bad they have done, is how many people turn up for their funeral. In Navalny's case, there was an extra dimension knowing that the likely consequences of turning up to say a last goodbye could include getting sacked, arrested, a clubbing by the police or worse.

The results of Ceausescu's exercise in social engineering could be seen immediately after the revolution throughout the country in orphanages and hospital wards where the unwanted babies lay. The unwanted included the babies suffering from AIDS – though the regime did not recognise that Romania had an AIDS problem. This official blindness made the problem worse, disastrously so. An old medical habit – abandoned in the West long before the Second World War – had lingered in Romania. It was to inject newborn babies with blood to give them greater strength. One batch of blood contaminated with AIDS, probably in a rare aid package from the United States, was the root cause. The lack of fresh, clean needles for the injections led, through cross-infection, to an AIDS epidemic among the young. But as this too officially did not happen, nothing was done about it.

To the layman, to someone like, say, Vladimir Putin, Novichok is famously untraceable, being lethal in tiny amounts, clear and smelling of nothing. That is so to the naked eye and, er, naked nose. But a good chemistry prof with a very good lab can detect the presence of the modified protein in parts per billion, so, actually, if you know what you are doing, Novichok is not untraceable at all. If you are on the case with your protein structures, it is like following a burglar's footprints in the snow.