IS leader al-Baghdadi in first public sermon

A video released Saturday showed Abu Bakr al-Baghdadi, leader of the Sunni Islamist ISI, giving his first public sermon in the mosque of Mosul. After seizing large areas of Iraq and Syria, al Baghdadi announced the establishment of the Islamist State with himself caliph. In his sermon he said all Muslims must obey him. The video termed him Caliph Ibrahim.