In this course, we will examine why al Qai-da attacked America. We will also examine the phenomenon of terrorism, in general, and the radical ideology developed and propagated by Osama bin Laden through al Qaida, more specifically. We will consider why individuals are attracted to this ideology and how they radicalize to violence. We will also explore how the United States addressed terrorism prior to 9/11 and the policy changes the US (and its allies around the globe) faced in the immediate aftermath of the attacks.