Mikhail Gorbachev, Soviet Union's last leader, dead at 91
Mikhail Gorbachev, who led the Soviet Union from 1985 to 1991 and helped bring about the end of the Cold War, has died at the age of 91. CBS News' Tina Kraus has more on his legacy.
Mikhail Gorbachev, who led the Soviet Union from 1985 to 1991 and helped bring about the end of the Cold War, has died at the age of 91. CBS News' Tina Kraus has more on his legacy.