Obama says has 'substantive' dispute with Israeli PM

US President Barack Obama insisted Tuesday that his disagreement with Israel's Prime Minister Benjamin Netanyahu represents a substantial policy difference and not a personal vendetta. As the Israeli premier works to build a new coalition government at home, he faces one of the worst confrontations in his stormy relationship with the White House. He has tried to play down declarations he made during his recent victorious election campaign in which he ruled out the creation of a Palestinian