A tape apparently recorded by murdered Russian spy Alexander Litvinenko a year before he was poisoned has revealed he was digging up links between Vladimir Putin and one of the world’s most dangerous terrorists. A Telegraph investigation uncovered the audio recording, in which the dissident claims from beyond the grave that Russia’s president had a “good relationship” with Semion Mogilevich - a Ukrainian crime boss who was on the FBI's most wanted list and whom Mr Litvinenko believed was selling weapons to al-Qaeda. The apparent recording of Mr Litvinenko is published for the first time ahead of a public inquiry...