In December 2007, al Qaeda's No. 2, Ayman al-Zawahiri, made a little-noticed nod to the fact that his organization's popularity was taking a nosedive: He solicited questions from jihadi forum participants in an online question-and-answer session. It looked like a rather desperate gambit to win back al Qaeda’s dwindling support. And it was. Since the September 11 attacks, the terrorist organization and its affiliates had killed thousands of Muslims -- countless in Iraq, and hundreds more in Afghanistan and Pakistan that year alone.