The Boston Marathon Bombings - Is There a Science of Terrorism in the United States?

Psychology as a discipline hasn't yet contributed very, very much to the study of terrorism. I think it's fair to say that we are at the very, very early stages in terms of developing a science of terrorist behavior. If there is no simple way to profile who might be a terrorist, how do you begin to understand and study terrorist behavior? We've discovered in recent years that it is possible for us to reach out to and identify individuals who have disengaged from terrorism. So we can actually ask questions to people who were once involved in high profile terrorist activity.