I think it's important to remember those times when we were so close to destroying ourselves, and yet someone made the right call at just the right moment, and quite literally saved the world.
(Also, tomorrow is the John Bordne day, who only a day after Vasili Arkhipov found himself in a position to prevent the WWIII from starting. The story was covered on HN yesterday[1].)
[0] - https://en.wikipedia.org/wiki/Vasili_Arkhipov#Involvement_in_Cuban_Missile_Crisis
[1] - https://news.ycombinator.com/item?id=10452983
https://news.ycombinator.com/item?id=10455951