Ku qor sii wadida cutubkan - Sida ku xusan buugga, FSB waxay amar toos ah ka heshay madaxweynaha Ruushka Vladimir Putin inuu dilo Alexander Litvinenko, waxayna sidoo kale gacanta ku haysay qaraxyadii guryaha ee 1999
, dhibaatadii masraxa Moscow iyo dilkii Anna Politkovskaya.