I'm with those who are cynical on the timing of this discovery and the supposed intelligence sources behind it. The whole thing conjures up images of a similar incident from 14 years ago.
There is no denying that war boosts presidents' approval ratings. Not only that but there's this long standing (and, frankly, idiotic) romantic belief that "we shouldn't change presidents in time of war". That was a major campaign point for Bush back in 2004 and was also used for McCain's run in 2008, trying to expand the notion from "president" to "party".
There's a major narcissist running the country who has the ultimate power to ignore his joint chiefs (hell, he could dismiss them at will if he so chooses) who is currently embroiled in a whole lot of scandals while his popularity continues to drop. Pretty soon his popularity numbers will match the same voting percentage as the Republican base. People saying "oh there won't be war", you don't think Trump would gladly Wag the Dog so he could become more popular as the clichéd "War Time President" and almost guarantee a second term?
Some of the comments in this thread are maddeningly infuriating. He's going to listen to more even-tempered Joint Chiefs? Since when? Trump listens to Trump and his closest inner circle and that's it. He fires people who isn't loyal. He ostracizes people he can't easily fire but wants to be rid of. And his CLOSEST adviser is a war mongering xenophobe. You'll have to pardon me if I don't have the same level of confidence that he won't launch a military campaign on a whim if it means appeasing his own narcissistic desires.
E:
This. If anyone in this thread seriously thinks NK ever plans to use any nuke at any point they need to reassess their world view.
Even at the height of Soviet hubris, they weren't teaching their elementary school children about killing American soldiers nor did they have murals plastered everywhere showing major American landscapes in flame with their leader constantly on state TV talking about leaving America in fire and rubble.
We know Kim Jong Un's regime does this thanks to North Korean defectors. NK's entire society has spent the last 6 decades spinning a narrative and brainwashing their people with the very idea of destroying the United States, even if doing so is merely a Pyrrhic victory.