Subject
Terrorism Prevention
National security
48
Rules and practice
26
Terrorism Religious aspects Islam
18
Intelligence service
15
Interagency coordination
15
Islamic fundamentalism
14
Intergovernmental cooperation
13
Terrorism Risk assessment
12
Cyberterrorism Prevention
11
Evaluation
11
Border security
10
Jihad
10
United States Foreign relations
10
Domestic terrorism Prevention
9
Terrorists Travel Prevention
9
National security Law and legislation
8
Transportation Security measures
8
Visas Government policy
8
Terrorism
7
Airports Security measures
6
Appropriations and expenditures
6
Management
6
Social media Political aspects
6
Terrorists Recruiting
6
Admission of nonimmigrants Government policy
5
Airline passenger security screening
5
Emergency management
5
Intelligence service Management
5
Privacy, Right of
5
September 11 Terrorist Attacks, 2001
5
State-sponsored terrorism
5
Terrorists Identification
5
Emigration and immigration law
4
Federal aid to terrorism prevention
4
Immigration enforcement
4
Internet and terrorism
4
Iran Foreign relations
4
National security Technological innovations
4
Officials and employees
4
Online social networks Political aspects
4
Terrorist organizations
4
Aeronautics, Commercial Security measures
3
Bioterrorism Prevention
3
Border security Law and legislation
3
Chemical terrorism Prevention
3
Criminal investigation
3
Drug control
3
Harbors Security measures
3
Humanitarian assistance, American
3
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