<prompt> Pedzisa mutsara unotevera: Muna 201516 Hurumende yeBritain yakaita ongororo yekufa kwaAlexander Litvinenko. Mushumo waro unoti, Basa reFSB rokuuraya VaLitvinenko ringangodaro rakabvumirwa naVaPatrushev uyewo naPurezidhendi Putin. Mushumo wacho wakaratidza zvimwe zvikonzero zvingangoita kuti aurayiwe, kusanganisira mashoko aLitvinenko aiita paruzhinji nemabhuku aitaura nezvekuponda kwacho.  <response>: kubatanidzwa kunofungidzirwa kweFSB mukuuraya kwevanhu vakawanda, uye pasina mubvunzo chinhu chomunhu oga chokurwisana pakati paPutin naLitvinenko, kwakatungamirira kumhondi. 