" Denunciation in Russia has a long history, going back at least as far as the sixteenth century and the testingly protracted reign of Ivan the Terrible (1533– 84). “Spy or die” was, more or less, the oath you swore. This practice, increasingly institutionalized under the old regime, was a tsarist barbarity that Lenin might have been expected to question. "

― Martin Amis , Koba the Dread: Laughter and the Twenty Million