There has been a shift to the Right in Israel in the wake of the Lebanon war. One indication of this is the inclusion of the racist Avigdor Lieberman in the Israeli government. The Guardian says:

The Israeli prime minister, Ehud Olmert, yesterday finally turned his back on the centrist agenda which brought him to power earlier this year by bringing into his coalition government one of the country's most outspoken rightwing politicians.The return to government of Avigdor Lieberman, who has called for Israel's borders to be redrawn to exclude its Arab citizens, signals a more hawkish policy. He will be made a deputy prime minister with responsibility for "strategic threats", particularly Iran.

In his op-ed Cook goes on to say that like many of his fellow Israeli politicians Lieberman:

harbours a strong desire to see the Palestinians of the occupied territories expelled, ideally to neighbouring Arab states or Europe. Lieberman, however, is more outspoken than most in publicly advocating for this position.Where he is seen as overstepping the mark is in arguing that the state should strip up to a quarter of a million Palestinians living inside Israel of their citizenship and seal them and their homes into the Palestinian ghettoes being created inside the West Bank (presumably in preparation for the moment when they will all be expelled to Jordan). He believes any remaining Arab citizens should be required to sign a loyalty oath to Israel as a "Jewish and democratic state" -- loyalty to a democratic state alone will not suffice. Any who refuse will be physically expelled from Israel.