“Political polarization, combined with the idea that one’s opponents are irredeemably evil and that there are no other legal avenues to create change, can lead to violence,” said Joshua Fisher-Birch [CEP Researcher], a terrorism analyst who closely tracks extremists across the political spectrum. “There are several guides online for assassination, guerrilla warfare or similar violent acts, as well as counter-surveillance manuals shared by individuals in communication apps such as Telegram and online libraries.”