“Our national security has been based on the perception that nuclear war is unhealthy.”
This is not something to talk lightly about. Sending out tweets threatening the potential use of nuclear weapons is irrational. I don’t say this because I think we can’t or shouldn’t keep our nuclear arsenal up-to-date and insure that it is both safe and reliable.
This article from ArsTechnica is a reminder that nuclear war, even the use of a single bomb, is extremely unhealthy for everyone. I recommend you read the article and also, if you’re so inclined, dig deeper and read the study The Medical Implications of Nuclear War, published by Fred Solomon and Robert Q. Marston published in 1986.