Committee on Human Rights in the USSR International Institute of Human Rights. It also became a member of the International Institute of Law. The Committee was kept under constant surveillance by the KGB. Head of the KGB Yuri Andropov wrote in a report to the Central Committee of 1 March 1973: "The anti-social activities of the so-called Human Rights Committee decreased in 1972 as a result of measures taken by the KGB. These measures included compromising Chalidze's reputation, stripping him of Soviet citizenship [during his visit to the United States], and inciting disagreement and dissension among the Committee's members and sympathisers, which led to Tverdokhlebov's resignation." According
KGB "persona non grata" and expelled by the government of the target country. The "illegal resident" spied, unprotected by diplomatic immunity, and worked independently of Soviet diplomatic and trade missions, ("cf." the non-official cover CIA officer). In its early history, the KGB valued illegal spies more than legal spies, because illegal spies infiltrated their targets with greater ease. The KGB residency executed four types of espionage: (i) political, (ii) economic, (iii) military-strategic, and (iv) disinformation, effected with "active measures" (PR Line), counter-intelligence and security (KR Line), and scientific–technological intelligence (X Line); quotidian duties included SIGINT (RP Line) and illegal support (N