Active reserve (KGB) officers with a military rank who worked undercover in the Soviet Union. "Trusted contacts" were high placed civilians who collaborated with the KGB without signing any official working agreements, such as directors of personnel departments at various institutions, academics, deans, or writers and actors. Informers were citizens secretly recruited by the KGB, sometimes using forceful recruitment methods, such as blackmail. The precise number of people from various categories remains unknown, but one of the estimates was 11 million "informers" in the Soviet Union, or one out of every eighteen adult citizens The active reserve was established by Yuri Andropov in
KGB literature re-emerged, including the novel "One Day in the Life of Ivan Denisovich" (1962), by Aleksandr Solzhenitsyn, who was code-named PAUK ("spider") by the KGB. After Khrushchev's deposition in 1964, Leonid Brezhnev reverted the State and KGB to actively harsh suppression; house searches to seize documents and the continual monitoring of dissidents became routine again. To wit, in 1965, such a search-and-seizure operation yielded Solzhenitsyn manuscripts of "slanderous fabrications", and the subversion trial of the novelists Andrei Sinyavsky and Yuli Daniel; Sinyavsky (alias "Abram Tertz"), and Daniel (alias "Nikolai Arzhak"), were captured after a Moscow literary-world informant told KGB when