The notion that groups should have equal rights but remain separate was once the ultimate concession of traditionalists in the old segregated American South.
Then there are the questions of the Israeli Arabs and of Jerusalem (for is it, as Berlin once was, to be sliced in two by a wall?). Having said that, it is striking that a man of liberal values such as my PeaceNow friend should advocate the physical separation of groups as the road - perhaps the only road - to peace. sur de Estados Unidos.