This post first appeared on July 24, 2017 at The Nation. Bill Moyers thought it was worth revisiting today given this week’s events. ' There is no more urgent issue confronting the nation than Donald Trump and the nuclear button. Climate change, which likewise poses an existential threat to civilization, does not have such a short fuse. Fights over health care, immigration, budgets and taxes — these can be won or lost today but resumed tomorrow. Go wrong with nuclear weapons, and there may be no tomorrow.It is imperative to immediately ratchet down tensions between the US and North Korea and above all to make sure no nuclear weapons are fired.'