Rise of the lone wolves: the new faces of jihad. By Ed Husain. London Evening Standard, April 23, 2013.
The Terrorist Tipping Point: What Pushed the Tsarnaev Brothers to Violence? By Christopher Dickey. The Daily Beast, April 23, 2013.
The Terrorist’s Sojourn in a Most Dangerous Place. By Glen Howard. Wall Street Journal, April 23, 2013.
Jihad Is Now Truly Global. By Lydia Khalil. Real Clear World, April 22, 2013.
Radicalization in the West: The Homegrown Threat. By Mitchell D. Silber and Arvin Bhatt. NYPD Intelligence Division, 2007.