It seems unthinkable, but American leaders’ failure to think about it heightens the risk it will happen.

By Peggy Noonan

No one since 1945, in spite of all the wars, has used nuclear weapons. We are in the habit, no matter what we acknowledge as a hypothetical possibility, of thinking: It still won’t happen, history will proceed as it has in the past.

But maybe not. History is full of swerves, of impossibilities that become inevitabilities.

For the administration’s leaders this should be front of mind every day. They should return to the admirable terseness of the early days of the invasion. They should wake up every day thinking: What can we do to lower the odds?

Think more, talk less. And when you think, think dark.

https://www.wsj.com/articles/putin-really-may-break-the-nuclear-taboo-russia-ukraine-weapons-attack-war-artillery-shells-fight-11651176309