1. B. NAYLOR and R. LUCAS, “Wray Stresses Role of Right-Wing Extremism in Hearing About Jan. 6 Riot,” National Public Radio, March 2, 2021.
2. “Jihadist Terrorism: A Threat Assessment,” Bipartisan Policy Center (2013).
3. Insider Threats
4. The Capitol Attack and the 5th Terrorism Wave
5. M. SNELL, C. SCHARMER, and P. GIBBS, “Approaches and Modeling Techniques to Determine System Effectiveness Against Insider Collusion.” (2017)