Why hasn't the PLO, or even the many Arab oil states that are willing to subsidize its bombers, set up clinics and hospitals in PLO territory, so the Arabs don't have to cross into Jewish territory to get treatment??
And after the Palestinians get their own state (.. yeah, like that's ever really going to happen ..), do they expect to be allowed across a national boundary to use Israeli hospitals? To work in their shops? To shop in their shops?
Hopefully, once the wall goes up, there will only be a triple-barrier of concertina and landmines facing the Palis, with no passages through the fence.