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 a "friend of the cause" or as "agents provocateurs", who would infiltrate the target group to sow dissension, influence policy, and arrange kidnappings and assassinations. Mindful of ambitious spy chiefs—and after deposing Premier Nikita Khrushchev—Secretary Leonid Brezhnev and the CPSU knew to manage the next over-ambitious KGB Chairman, Aleksandr Shelepin (1958–61), who facilitated Brezhnev's palace "coup d'état" against Khrushchev in 1964 (despite Shelepin not then being in the KGB). With political reassignments, Shelepin protégé Vladimir Semichastny (1961–67) was sacked as KGB Chairman, and Shelepin himself was demoted from chairman of the Committee of Party and State Control to Trade Union