Well, remember that my comment was geared towards reminding Frags that, whatever the justification, Israel could not really be thought of as unwilling to "grab" land.
However, to point out one connection, many Palestinian Arabs vacated properties at the urging of their neighboring Arab states to get out of the line of fire while Israel was swept into the sea. The "right of return" concept, stemming from that time, has been and continues to be one of the issues entwined in the Israeli-Palestinian conflict. Whether or not this is a justifiable "why Palestinians should pay" often depends on the perspective of the assessor.
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