Note: this topic was posted 11/14/2011. Thanks Nachum.
There shouldnt be any dispute over land ownership. God granted Title and Deed to Israel 4,000 years ago and recorded it in the best Registrar of Deeds known to man:
Genesis 15:18
In the same day the Lord made a covenant with Abram, saying, Unto thy seed have I given this land, from the river of Egypt unto the great river, the river Euphrates:
That same Title was transferred through Isaac by promise. Not Ishmael!