Revolutions of 1989 needed Western technology and credits to make up for its increasing backwardness. The costs of maintaining its military, the KGB, subsidies to foreign client states etc., further strained the moribund Soviet economy. The first signs of major reform came in 1986 when Gorbachev launched a policy of "glasnost" (openness) in the Soviet Union, and emphasized the need for "perestroika" (economic restructuring). By the spring of 1989, the Soviet Union had not only experienced lively media debate, but had also held its first multi-candidate elections in the newly established Congress of People's Deputies. While glasnost ostensibly advocated openness and political criticism,
Mikhail Gorbachev major campaign to limit alcohol consumption, which Gorbachev—who believed it would improve health and work efficiency—oversaw. His wife keenly supported the measure. As a result, crime rates fell and life expectancy grew slightly between 1986 and 1987. The reform had significant costs to the Soviet economy, resulting in losses of up to $100 billion between 1985 and 1990. Gorbachev later considered the campaign to have been an error. In April 1986 the Chernobyl disaster occurred; in the immediate aftermath, officials fed Gorbachev incorrect information to downplay the incident. As the scale of the disaster became apparent, 336,000 people were evacuated