Al Qaeda’s chief ideologue said in a videotape broadcast on Arab television Monday that the United States needed to change its policies toward Islamic countries or “we will continue fighting you until the last hour.” The statement was the third issued since September by Ayman Zawahiri, an Egyptian physician and the top deputy to al Qaeda leader Osama bin Laden. It was aired on al-Jazeera, the Arab satellite television network, one month after bin Laden delivered a similar video message four days before the U.S. presidential election. Zawahiri’s message contained references that suggested it was recorded some time ago.Full Story