Terrorism -- 62 Prevention 35 Prevention -- 28 Terrorism 17 Government policy -- 10 National security -- 7 War on terrorism, 2001- 7 more ... Foreign relations -- 6 International cooperation 5 Psychological aspects 5 Terrorists -- 5 Military policy 4 Psychology 4 Civil rights -- 3 Government publications -- 3 History -- 3 Radicalism -- 3 Security, International 3 Case studies 2 Child terrorists 2 Civil defense -- 2 Defenses 2 Foreign relations 2 Government policy 2 Islam 2 Politics and government 2 Politics and government -- 2 Prevention. -- 2 Religious aspects -- 2 Social aspects 2 less ...