Mezue ahịrịokwu na-esonụ: Dị ka akwụkwọ ahụ si kwuo, FSB natara iwu kpọmkwem site n'aka Onyeisi ala Russia bụ́ Vladimir Putin ka o gbuo Alexander Litvinenko, o nwekwara aka n'ime
Mgbawa bọmbụ nke ụlọ obibi dị na 1999, ọgba aghara nke ụlọ ihe nkiri Moscow na ogbugbu nke Anna Politkovskaya.