KGB to find them at home. In 1967, the campaign of this suppression increased under new KGB Chairman Yuri Andropov. After suppressing the Prague Spring, KGB Chairman Andropov established the Fifth Directorate to monitor dissension and eliminate dissenters. He was especially concerned with Aleksandr Solzhenitsyn and Andrei Sakharov, "Public Enemy Number One". Andropov failed to expel Solzhenitsyn before 1974; but did internally exile Sakharov to Gorky in 1980. The KGB failed to prevent Sakharov's collecting his Nobel Peace Prize in 1975, but did prevent Yuri Orlov collecting his Nobel Prize in 1978; Chairman Andropov supervised both operations. KGB dissident-group infiltration featured
KGB moles in two key places—the counter-intelligence section of CIA and the FBI's counter-intelligence department—through whom they would know of, and control, US counter-espionage to protect the moles and hamper the detection and capture of other Communist spies. Moreover, KGB counter-intelligence vetted foreign intelligence sources, so that the moles might "officially" approve an anti-CIA double agent as trustworthy. In retrospect, the captures of the moles Aldrich Ames and Robert Hanssen proved that Angleton, though ignored as over-aggressive, was correct, despite the fact that it cost him his job at CIA, which he left in 1975. In the mid-1970s, the KGB tried