It's a good rule of thumb to pay attention to the vocabulary of palestinianism so that Americans and Israelis won't continue to get swindled. Keep in mind that the "Nabka" was in fact, self-inflicted. From an arab news source via Daily Alert:
Arab states are demanding that the U.S. clarify the purpose of a planned return trip by President Bush to Israel in May to mark the 60th anniversary of the founding of Israel, the UAE-based Al-Khalij newspaper reported Sunday. Arab states have communicated their disappointment to the Americans over the plan, which also marks the 60th anniversary of what Palestinians call the Nakba, the "catastrophe."