In a frame from a video provided by IntelCenter, posted on the Internet on Thursday, April 13, 2006, al Qaeda’s deputy leader, Ayman al-Zawahri, praises insurgents in Iraq. Al-Qaeda No. 2 Ayman al-Zawahri insulted Barack Obama in the terror group’s first reaction to his election, calling him a demeaning racial term implying that the president-elect is a black American who does the bidding of...