Not all countries at the same time. But one country at random which would affect that random person. The rest of the world would watch and think that it never could have happened to them, just as that random person may have thought not long before.

A coup that splits the nation into warring factions.

Really, anything where the government response makes things worse and spirals out of control.

A lot of the Central American refugees are fleeing very sharp increases in gang violence.

Just listening to ‘Fukushima’ on BBC World Service podcasts and ‘major nuclear incident’ is definitely one that springs to mind.

Wat?

Fukushima a) happened and b) Japan and the world are still there