A former Russian spy (one who had flipped, and was swapped a few years ago for Russian agents we had uncovered) was found severely ill. He daughter was also with him and very ill. His wife died recently, which may not be suspicious. His son died in Russia less than a year ago.
The UK believe that the murder of Alexander Litvinenko a few years ago was carried out at the behest of the Russian state. That involved using a highly dangerous polonium isotope that could easily have caused damage to random bystanders.
It seems that this incident in Salisbury used a nerve agent and has affected several other people, including the police officer who came to investigate two unconscious people on a bench.
If this is also tied back to the Russian government, is the use of chemical weapons against civilians something we should consider an act of war?
What can the UK and our allies do about it?
[One thing that does bug me is that it seems Skripal was not living under an alias, and so would be easy for someone to locate, and given the history I would hope that our security forces would have offered, or even insisted, on giving him anonymity. But even so, the brazen and reckless nature of this incident is utterly vile]