I'll answer Little Brother first.

The Arabs who committed that atrocity were wrong, obviously. Their greivances were legitimate, but their methods were not. Their grievances were that they were having their homes sold out from under them by absentee landlords to the European immigrants who were also disposessing them of their livelihoods.

However, the people who committed that atrocity should have been the ones who were punished for it, not all of the Palestinian people for all time.

Unfortunately, the Arab man who was the leader of the group of Arab extremists who committed that massacre was pardoned by an Englishman who was of Jewish ancestry, and then appointed by him to the position of Mufti, against the wishes of the majority of the Arabs in the region. The Mufti then went on to commit further atrocities against both European Jews, as well as Palestinians. And the Palestinians have been punished ever since for the actions of this man, whom they didn't even want, and who was appointed to his position of power by a Jew. Can you imagine how they might feel pretty victimized by this? Maybe it's time to stop collectively punishing the Palestinians for something that they, collectively, had no control over.

And I do have the historical documentation to back up my assertions.