Domestic Terrorism Radicalization Hamas Motivations Motives Government Response Ideological Extremism Islamist Extremism Motivations for Violence Extremism Islamist Terrorism Attacks IRA Public Policy Islamic Terrorism Counter-Terrorism Healthcare Policy Government Policy Public Safety Perpetrators Influencers Political Motivations Incitement to Violence Leftist Terrorism Khalistani Movement Ethnic Conflicts Responses to Terrorism Migration Policy Preventive Measures Religious Extremism Religious Terrorism Far-Right Extremism International Terrorism Right-Wing Terrorism Incidents Threat Assessment Ideological Terrorism Impact on Society Campaign Targeting Acts of Terrorism Mass Shootings Gun Violence Bombing Suicide Bombing