Al-Awlaki's other followers include the Fort Hood shooter Nidal Malik Hasan, the Christmas Day bomber Umar Farouk Abdulmutallab, and the Times Square bomber Faisal Shahzad.

And there have been allegations that U. S. -born cleric Anwar al-Aulaqi might have influenced Major Malik Nadal Hasan's shooting rampage at Fort Hood last November.