Wall
In Israel, late at night, the government started erecting a 30-foot wall separating Jerusalem from the neighboring town of Abu Dis. (
story)
I don't know why, but this in particular terrifies me, like it's a sign that something truly horrible is going to happen. Not in the usual politics sense - in some vaguer and more metaphysical sense. This is a bad idea, one that's going to have consequences for ages to come, and I'm very scared of what may come next.