Al-Zarqawi's successor vows to defeat `crusaders'

The new leader of al-Qaida in Iraq vowed to defeat "crusaders and Shi'ites" in Iraq, according to a statement posted on the Web Tuesday. The statement appeared one day after the group announced that a man identified by the nom de guerre Abu Hamza al-Muhajer would succeed Abu Musab al-Zarqawi as its leader.