Al-Qaida's leader on Friday marked the anniversary of the Sept. 11, 2001 attacks by calling on Muslims to strike inside the United States, with big attacks or small, using any opportunity they can to "bleed" America financially. In an audio message released two days after the 12th anniversary of the attacks, Ayman al-Zawahri said America is not a "mythic power" and that the mujahedeen - Islamic holy warriors - can defeat it with attacks "on its own soil." Al-Zawahri, the successor to Osama bin Laden, used the anniversary to argue that the United States can be defeated by targeting its...