If anyone else found this comment about poisoning defected spies oddly familiar, you might also be thinking of the poisoning of Alexander Litvinenko[0], indeed

If anyone else found this comment about poisoning defected spies oddly familiar, you might also be thinking of the poisoning of Alexander Litvinenko[0], indeed using Po-210. [0]: https://en.m.wikipedia.org/wiki/Poisoning_of_Alexander_Litvinenko https://en.m.wikipedia.org/wiki/Poisoning_of_Alexander_Litvi...