"By 1989, shooting people on the border was unacceptable, and even the cosseted old men at Wandlitz knew it. None the less, the Wall still stood proud and ugly, with its sturdy blocks, its spikes and fences and alarms and watch-towers, seemingly permanent and impregnable. Its fate would not be determined in Berlin. Mostly it would be decided hundreds of miles away, by people who had decided that a Communism which needed to be enforced by guns and barbed wire was not a Communism worth having."
January 1, 1970
https://en.wikiquote.org/wiki/Berlin_Wall