Mikhail Gorbachev from the area around Chernobyl. Taubman noted that the disaster marked "a turning point for Gorbachev and the Soviet regime". Gorbachev later described the incident as one which made him appreciate the scale of incompetence and cover-ups in the Soviet Union. From April to the end of the year, Gorbachev became increasingly open in his criticism of the Soviet system, including food production, state bureaucracy, the military draft, and the large size of the prison population. Gorbachev's primary goal as general secretary was to revive the Soviet economy after the stagnant Brezhnev years. In 1985, he announced that the economy
Mikhail Gorbachev carried out only personnel shifts rather than structural change. Andropov encouraged Gorbachev to expand into policy areas other than agriculture, preparing him for future higher office. With Andropov's encouragement, Gorbachev sometimes chaired Politburo meetings. In April 1983, Gorbachev delivered the annual Lenin's birthday speech; this required him re-reading many of Lenin's later writings, in which the first Soviet leader had called for reform, and encouraged Gorbachev's own conviction that reform was needed. In May 1983, Gorbachev was sent to Canada, where he met Prime Minister Pierre Trudeau and spoke to the Canadian parliament. There, he met and befriended the Soviet