Osama bin Laden and Al-Qaida - This image made from an undated al-Qaeda video made available by IntelCentre on Tuesday, Feb. 13,2007, shows a man identified as Al-Qaida's No. 2 Ayman al-Zawahri.Al-Zawahri called for Muslim unity and said American elections that gave Democrats control of Congress would not change U.S. policy in Iraq