After Russian President Vladimir Putin put his country’s nuclear forces on high alert on February 27, UN Secretary-General António Guterres said, “The prospect of nuclear conflict, once unthinkable, is now back within the realm of possibility.” Recent statements by government officials and pundits, both in Russia and the United States, have made it clear that while nuclear war should be unthinkable, they are indeed thinking about it … a lot.

(SOURCE) https://www.cnn.com/2022/05/03/opinions/nuclear-war-talk-russia-helfand-christ/index.html