 Yakov Saulovich Agranov akazvarwa Yankel Samuilovich Sorenson; 1893 1938 aive wekutanga mukuru weSoviet Main Directorate yeState Security uye mutevedzeri wemukuru weNKVD Genrikh Yagoda. Iye anozivikanwa somumwe wevakuru varongi veSoviet kudzvinyirira kwezvematongerwo enyika uye Stalinist show kutongwa muma1920 nema1930. Akagadzira nyaya yekurangana kwaTagantsev uye kutongwa kweMoscow, kusanganisira Kutongwa kweMakumi maviri nerimwe uye Industrial Party Trial, uyewo kusungwa kwevanhu vakawanda uye kuurayiwa muSt. Petersburg munguva yaStalin yeGreat Purge. 