In recent years, a variety of both foreign and now domestic extremist movements have adopted and vigorously advocated via social media a strategy that encourages “lone wolves” to engage in individual acts of violence against a broad array of designated enemies. This breed of inspired adversary is a more recent and distinctly different kind of terrorist — to which traditional organizational constructs and definitions do not neatly apply. Terrorism today is thus also populated by individuals who are ideologically motivated, inspired, and animated by a movement, a leader, or a mélange of ideological mentors but who neither necessarily formally belong to a specific, identifiable terrorist group nor directly follow orders issued by its leadership.