Zuheir Mohsen was a longtime PLO big wig. And he was the most honest terrorist of them all …
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Zuhair Mohsen is perhaps most widely known in the West for having made the following statement in a March 1977 interview with the Dutch newspaper Trouw[1]:

The Palestinian people does not exist. The creation of a Palestinian state is only a means for continuing our struggle against the state of Israel for our Arab unity. In reality today there is no difference between Jordanians, Palestinians, Syrians and Lebanese. Only for political and tactical reasons do we speak today about the existence of a Palestinian people, since Arab national interests demand that we posit the existence of a distinct “Palestinian people” to oppose Zionism.
For tactical reasons, Jordan, which is a sovereign state with defined borders, cannot raise claims to Haifa and Jaffa, while as a Palestinian, I can undoubtedly demand Haifa, Jaffa, Beer-Sheva and Jerusalem. However, the moment we reclaim our right to all of Palestine, we will not wait even a minute to unite Palestine and Jordan.
While this contravened the PLO charter, which affirms the existence of a Palestinian people with national rights, it was in line with al-Sa’iqa’s Syrian-Ba’thist ideology.