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.
Yonatan Zunger’s Blog 
Autumn referred me to this.
I’m afraid you are quite right.
To the best of what I can determine, it ties into all this stuff:
http://www.livejournal.com/users/metaphorge/454081.html
This isn’t all of it, though.
Israel building walls means that the people are losing hope for a peaceful solution.
Which is never a good thing.