It’s pretty frustrating that this wacky cunt gets to be the voice of reason after helping to build the MAGA house of lies, but here we are.
If the United States used even a smaller “tactical” nuclear weapon in Iran, beyond crushing humanity with an act of unspeakable evil that the world would become obliged to somehow mitigate, it would instantly plunge us into a dark period which in which the use of nuclear arms in conventional conflict becomes acceptable. It would become almost impossible to prevent sharp escalations into fully regional or global nuclear war.
The threat of ubiquitous nuclear annihilation from the Cold War has not gone away. There are more than enough planetary-scale weapons and delivery systems to destroy every city in the world of significant size or population, and render most of the earth uninhabitable for thousands of years.
The effects of these weapons cannot be understated, and there are people now high up in the US nuclear chain of command who are either too stupid or too crazy to fully grasp the implications of their use.