The Porepunkah incident, by comparison, looks less like terrorism than like a heinous crime carried out by a perpetrator with an extreme ideology. Ideologically motivated crime is part of the broader violent-extremism spectrum and requires sustained monitoring. The fact that two officers lost their lives underscores the real risks of ideologically motivated crime, even when it falls short of terrorism. Not every crime touched by ideology rises to the level of terrorism—but every act of terrorism is, by definition, ideology-driven. Terrorism is only part of the wider spectrum of ideologically motivated violence.