Subject
Terrorism Prevention
National security Law and legislation
25
September 11 Terrorist Attacks, 2001
18
Rules and practice
8
Interagency coordination
7
Terrorists Identification
7
Emergency management Law and legislation
6
Intelligence service Management
5
Intergovernmental cooperation
5
Military assistance, American
5
Admission of nonimmigrants Government policy
3
Crimes against peace
3
Drone aircraft
3
Federal aid to terrorism prevention
3
Officials and employees
3
Proxy war
3
Reorganization
3
Security, International
3
Terrorism investigation
3
Terrorists Travel Prevention
3
Airline passenger security screening Law and legislation
2
Airports Security measures
2
Border security Law and legislation
2
Detention of persons
2
Emigration and immigration law Criminal provisions
2
Emigration and immigration law States
2
Employee screening Law and legislation
2
Government report writing Law and legislation
2
Illegal immigration
2
Illegal immigration Identification Government policy
2
Immigration enforcement
2
Internet and terrorism
2
National security
2
Noncitizens
2
Noncitizens Identification Government policy
2
Online social networks Political aspects
2
Pipelines Security measures
2
Selection and appointment
2
Social media Political aspects
2
Terrorism Risk assessment
2
Transnational crime Law and legislation
2
Transportation Security measures
2
United States Armed Forces
2
Administrative agencies Rules and practice
1
Aeronautics, Commercial Security measures Law and legislation
1
Americans Protection
1
Appropriations and expenditures
1
Automobile leasing and renting Law and legislation
1
Border security Finance
1
Computer security Finance
1
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