A New York Times article examines whether or not Israeli settlers are using the threat of violence as a political strategy. Israeli Prime Minister Netanyahu says differences remain between Israel and the United States, but US Mideast Envoy George Mitchell expresses cautious optimism and Egyptian President Mubarak backs a settlement freeze. The Washington Post profiles the Israeli West Bank settlement of Ariel. National Jewish leaders support President Obama's push for a settlement freeze. Violent clashes erupt between Israeli settlers and Palestinians. The IMF says West Bank economy remains on course to grow about 7 percent this year.