Subject
Terrorism Government policy
151
Terrorism Prevention
46
United States Foreign relations
34
National security
32
Emergency management
24
Chemical terrorism Government policy
19
Syria Foreign relations
15
War on Terrorism, 2001-2009
15
Bioterrorism Government policy
14
Economic sanctions, American
13
Nuclear terrorism Government policy
13
National security Law and legislation
12
September 11 Terrorist Attacks, 2001
11
Terrorism
10
Intelligence service Evaluation
8
Terrorism Prevention International cooperation
8
Human rights
7
Chemical plants Security measures Government policy
6
Terrorism Prevention Government policy
6
Terrorism Religious aspects Islam
6
United States Defenses Law and legislation
6
Weapons of mass destruction
6
Rules and practice
5
United States Military policy
5
Democratization
4
Iran Politics and government
4
Iraq War, 2003-2011
4
Nuclear nonproliferation
4
Nuclear weapons
4
Civil defense
3
Criminal investigation
3
Emigration and immigration law
3
Hegemony
3
Incident command systems
3
Intelligence service
3
Iran Foreign relations
3
Jihad
3
Lebanon Politics and government
3
Pakistan Foreign relations
3
Saudi Arabia Foreign relations
3
Syria Politics and government
3
Terrorists
3
United States Defenses
3
Clemency
2
Crisis intervention (Mental health services) Planning
2
Demonstrations
2
Diplomatic negotiations in international disputes
2
Disaster medicine
2
Disaster relief Law and legislation
2
Drug control
2
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