Understanding London

London's brutal, barbaric attack defies description. It's seems unbelievable yet all too real in today's world.

Why did these attackers driven by Islamic ideology murder this lone British soldier? What drives some – certainly not all – Muslims to wage "holy war" on infidels? What motivates a suicide bomber in Afghanistan? Or Al-Qaeda who kidnapped, killed, and be-headed Wall Street journalist Daniel Pearl in 2002?

We talked with Professor Moshe Sharon of the Hebrew University about the tenets of Islam, why some are waging a "holy war," and the difference between the "house of war" and the "house of peace." Perhaps it will help bring some understanding to the incomprehensible.