Expert says identity is at the heart of the Israeli-Palestinian conflict
CBS News correspondent Christina Ruffini reports from Copenhagen on the U.S. diplomatic response to the fighting in Israel and Gaza. Then Steven Cook, senior fellow for Middle East and Africa Studies at the Council on Foreign Relations, joins CBSN's "Red & Blue" anchor Elaine Quijano with insight on some of the identity issues that are central to the conflict between Israelis and Palestinians.