With all the potential escalation of war against Russia and/or China, I have seen many more cases of skepticism of nuclear bombs.
If these skeptics are correct, the US empire is really, really screwed. Because that means we only have conventional warfare to fall back on to fight, and we are woefully unprepared to fight a country (ore more than one) that can fight back.
And if we have been bluffing this whole time, it will be one hell of a bluff call.