Buuxi weedha soo socota: Sarkaalkii hore ee FSB, mucaarad, Alexander Litvinenko, oo ay weheliyaan taxane qoraayaal kale sida Yury Felshtinsky, David Satter, Boris Kagarlitsky, Vladimir Pribylovsky, Mikhail Trepashkin (sidoo kale sarkaalkii hore ee FSB) ayaa sheegtay horraantii 2000s in 1999
Qaraxyadii guryaha ee ka dhacay Moscow iyo magaalooyinka kale ee Ruushka waxay ahaayeen weerar calan been ah oo ay isku dubarideen FSB si ay u helaan taageero dadweyne oo loogu talagalay dagaal cusub oo ballaaran oo ka dhacay Chechnya iyo kor u qaadista agaasimihii hore ee FSB Vladimir Putin, ka dibna ra'iisul wasaaraha, caan ka ahaa doorashooyinka baarlamaanka iyo wareejinta madaxweynaha ee awoodda Ruushka dabayaaqadii sanadkaas.