@mattblaze@federate.social personally I think some should be kept as historical markers, neither celebratory nor commemorative, but simply to record.

Like you I lived through those times (but in the UK) and I’m still shocked by finding out new things about how close we came then. The latest thing I learned was about the US using depth charges in international waters during the Cuban Missile Crisis to get USSR sub B59 to surface, unaware of the almost apocalyptic argument they triggered: https://en.wikipedia.org/wiki/Vasily_Arkhipov