[JohnFen]

I don't know about the people you're talking about, but I've been accused of insufficient concern about it myself. I don't agree with that accusation.

I am not panicking or obsessing about it, though, and I think people perceive that as being unconcerned. But it's not. I take it seriously, and engage in reasonable protective behaviors, but I am not afraid. Why? In part because there is little reason for me to be actively afraid (yet), and in part because fear is unhelpful and counterproductive.

Could this be a "black swan" event? Sure, it could. But we're not there yet, and losing sleep over it won't change the likelihood of it becoming that.

That said, what I see coming out of the US government, and particularly Trump's statements, make it much more difficult to remain calm.