I do not know, either, it was in the link that I was given. Maybe there is unoccupied ground around the ghettos or something, no idea how they arrived at their conclusion.
The atrocities are horrendous, and I am not sure there is any moral high ground for either side. Drone strikes on apartment buildings are less personal, I guess, but the results are pretty much the same.
Looking a little kid in the eye and then shooting them is totally incomprehensible to me.