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
Mikhail Gorbachev People's Deputies and chose a Presidential Council of 15 politicians. Gorbachev was essentially creating his own political support base independent of CPSU conservatives and radical reformers. The new Executive was designed to be a powerful position to guide the spiraling reform process, and the Supreme Soviet of the Soviet Union and Congress of People's Deputies had already given Gorbachev increasingly presidential powers in February. This was again criticized by reformers. Despite the apparent increase in Gorbachev's power, he was unable to stop the process of nationalistic assertion. Further embarrassing facts about Soviet history were revealed in April, when the government