Gorbachev interview on the 10th anniversary of Soviet Union's fall

CNN’s chief international anchor, Christiane Amanpour interviewed Mikhail Gorbachev in Berlin in 1999, in which they spoke about the fall of the Berlin Wall.
Amanpour: “...Mr. President, 10 years ago for us westerners, it was a triumph to see that wall come down the end of tyranny. The end of communism. But you were a committed communist. How did you feel personally when you saw them tear down that wall?”
Gorbachev: “By that time I had changed my mind about many things and in 1988 I came to a conclusion that the system could not be improved. We needed political reform and more freedom. Freedom of choice, political parties, give people some oxygen..."