Mark Regev - the spokesperson for Ehud Olmert, the Israeli prime minister - joins Sir David to discuss the attack on Jewish students and its implications for the peace talks.
Ragev defends the actions of the Israeli army and says it will be difficult to deal with Hamas because they are opposed to peace and reconciliation.
Sir David also talks to Jibril Rajoub, a member of the Fatah party who worked in the late Yasser Arafat's administration.
Rajoub condemns attacks that target innocent civilians, Palestinian or Israeli. He also says Hamas is part of the Palestinian society and as such must be treated as a partner in the peace process.