Related by context. Frequent words. (Click for all words.) 62 Gordievsky 56 KGB 56 Alexander Litvinenko 55 Andrei Lugovoy 54 KGB agent 54 MI6 53 agent Alexander Litvinenko 53 Lugovoy 52 Akhmed Zakayev 52 ex KGB 51 Berezovsky 51 Trepashkin 50 Lugovoi 50 Shcherbakov 50 tycoon Boris Berezovsky 50 Andrei Lugovoi 50 former KGB spy 50 Philby 50 Boris Berezovsky 49 Marina Litvinenko 49 Soviet KGB 48 Litvinenko 47 KGB successor 47 Soviet dissident 47 Aldrich Ames 47 Kremlin critic 46 Yuri Andropov 46 Igor Sutyagin 46 Safronov 46 Tretyakov 46 Chechen warlord 46 Robert Hanssen 46 Mitrokhin 45 Prime Minister Margaret Thatcher 45 Le Carre 45 MI5 45 Kremlin 45 MI5 spy 45 Dmitry Kovtun 45 Shvets 45 spy Alexander Litvinenko 45 Vladislav Surkov 45 Andropov 45 General Yuri Chaika 44 Leonid Brezhnev 44 Mossad 44 prime minister Margaret Thatcher 44 Komsomolskaya Pravda 44 Soviet 44 Richard Dearlove 44 Alex Goldfarb 44 spymaster 44 Primakov 44 Lady Thatcher 43 Sutyagin 43 Konstantin Novoselov 43 Russian oligarch 43 Surkov 43 Alexander Solzhenitsyn 43 radioactive polonium 43 Alexeyeva 43 Novaya Gazeta 43 Andrei Sakharov 43 Brezhnev 43 Gaidar 43 Yegor Gaidar 43 Mikhail Gorbachev 43 spymasters 43 Boris Yeltsin 42 Vladimir Putin 42 Scotland Yard 42 daily Izvestia 42 oligarch 42 Denis Thatcher 42 rare radioactive isotope 42 Simonov 42 Moscow 42 Chechen warlord Shamil Basayev 42 Chichvarkin 42 Solzhenitsyn 42 Novaya Gazeta newspaper 42 Buckingham Palace 42 Baroness Thatcher 42 Kolesnikov 42 Russias 42 Mossad spy agency 42 Secret Intelligence 42 Eduard Limonov 42 Chechen rebel 42 Roy Hattersley 42 Yevkurov 41 Ushakov 41 Mario Scaramella 41 Ponomaryov 41 Nevzlin 41 Aleksandr Solzhenitsyn 41 Patrushev 41 Gorbachev 41 Sergei Markov 41 fatally poisoned 41 Bukovsky