As the former KGB agent Alexander Litvenenko lies in intensive care under armed guard in a London hospital, here's an interesting piece of video from a recent debate at the Frontline club, a private members' club for foreign correspondents in London.
During a debate on the murder of the Russian journalist Anna Politkovskya, Mr Litvenenko is filmed standing up from the audience and saying: "I can directly answer you - it is President Putin of the Russian federation who has killed her".
He goes on to make several more allegations against both Mr Putin and the Kremlin.
Dramatic stuff, not least in the light of his own apparent poisoning. Let's hope it doesn't become his last public statement.
