bad international relationships.
However I do see an internal European war expanding to a global level.
North-Korea, actually a threat?
Actually, NK could take out the US. A big cyber attack that takes down a small part of the electrical grid would probably have a cascading effect, taking down the rest of the country's grid. Or they could have just one nuclear detonation high enough up that would produce an EMP, frying all electronics forever over most of or all the country, and the rest of the grid non fried would fail. While they couldn't take us out, they could destroy us.
On logic making you cold, yes it can. It happened to me.
Now, to the recent question. I'm not going to second guess you because I don't have all the info.
Biggest threat you see to your country?