The document defines terrorism as the unlawful use or threatened use of violence motivated by political, religious, or ideological beliefs to intimidate a population or government. It is not considered a crime or mental illness, but rather an act between non-state entities. The document discusses state-sponsored terrorism, dissent terrorism rooted in political ideology, religious terrorism, and criminal terrorism aiding other crimes. It notes that while there is no exact definition of a terrorist, anyone directly or indirectly terrorizing civilians for ideological beliefs could be considered a suspected terrorist. The document lists methods used to control suspected terrorists like citizenship stripping, passport confiscation, and seizing travel documents. It includes quotes from world leaders on taking strong action against terrorism.