Egyptian President Hosni Mubarak meets today with President Obama in Washington. A shootout at a mosque in south Gaza between Hamas and extremist Islamist group leaves at least 22 dead. Tensions increase between Israel and Hezbollah. Haaretz profiles a U.S.-based non-profit organization that has invested millions of tax-free dollars buying up land in occupied East Jerusalem. Israel's envoy to the United States is reportedly set to meet with White House officials and U.S. envoy George Mitchell's staff in Washington to discuss a settlement freeze. Israeli Defense Minister Ehud Barak postpones a cement delivery into Gaza. Fatah elects a Jewish Israeli, Uri Davis, to its Revolutionary Council.