The critically ill man whose collapse triggered an ongoing Major Incident in Salisbury last night and a lot of decontamination today has been named as Sergei Skripal
He was granted refuge in the UK following a "spy swap" between the US and Russia in 2010.
Interesting that Fentanyl has been talked about - more effective than Ricin?
Putin cleaning up and sending a message?
Edit to add: dang my arrse google fu is weak, but title is strong....