He was sentenced in January 1986 , just ten months after Mikhail Gorbachev became general secretary .
Svetov was one of the Soviet Union 's last dissidents of the Soviet Union who were arrested for religious oppression .
Svetov was sentenced in January 1986 , just ten months after Mikhail Gorbachev became general secretary .
Svetov was one of the Soviet Union 's last dissidents of the Soviet Union who were arrested for religious oppression .