Notes
1. Elaine Sciolino and Eric Schmitt, “A Not Very Private Feud over Terrorism,” New York Times, June 8, 2008, http://www.nytimes.com/2008/06/08/weekinreview/08sciolino.html?ref=.
2. Marc Sageman, Leaderless Jihad: Terror Networks in the Twenty-first Century (Philadelphia: University of Pennsylvania Press, 2008), xii.
3. Bruce Hoffman, “The Myth of Grass-roots Terrorism: Why Osama bin Laden Still Matters,” Foreign Affairs, May/June 2008, https://www.foreignaffairs.com/reviews/review-essay/2008-05-03/myth-grass-roots-terrorism.
4. Bruce Hoffman and Fernando Reinares, eds., The Evolution of the Global Terrorist Threat: From 9/11 to Osama bin Laden’s Death (New York: Columbia University Press, 2015), xi.