Please get it in your head already, Clans have nothing to do with occupation. As for the Pals being refugees, sure, why not. But this does not mean that as they left on mass they fled as families. It may be of interest to you to try and find some information about the large families amoungst the Pal population. for example the Dogmush family is the largest in Gaza city and amoungst other business interests they control all of Gaza City's wells and thus the water supply. Nice. They were not set up to take the place of the police. In fact for two thousand years there were no police. Nor was there a central government in Palestine. this part of the world was always ruled by the occupiers. Again to reiiterate, when the Moslem hords conquered the area in 638, the area now called Israel was ruled from Damascus and deemed Greater Syria. For centuries the area changed hands. The people here were not Pals, but were named after their families and villages.
4.2-scale earthquake felt in Dead Sea, Jerusalem area (Haaretz)
from the article: Ignoring the chaos