Subject
National security
United States Foreign relations
337
Terrorism Prevention
323
United States Military policy
220
Rules and practice
138
Intelligence service
129
Security, International
113
Appropriations and expenditures
99
United States Defenses
89
Management
83
Military planning
83
Evaluation
82
Terrorism Prevention Government policy
79
Emergency management
70
United States Armed Forces Operational readiness
67
Border security
66
United States Armed Forces
64
Cyberterrorism Prevention
60
Terrorism
59
United States Military relations
58
Export controls
53
Russia (Federation) Foreign relations
51
Nuclear nonproliferation
50
Planning
49
Interagency coordination
48
Nuclear weapons
48
Computer security
47
Economic sanctions, American
44
Civil defense
43
China Foreign relations
42
Military assistance, American
42
Weapons of mass destruction
41
Deterrence (Strategy)
40
Political stability
40
Energy policy
39
Terrorism Religious aspects Islam
39
Computer networks Security measures
37
Privacy, Right of
37
Visas Government policy
36
Drug control
35
Internal security
35
Strategy
34
Cyberinfrastructure Security measures
32
Terrorism Government policy
32
Human rights
31
Civil rights
30
Illegal immigration
30
Noncitizens
30
War on Terrorism, 2001-2009
30
Drug traffic
29
more ...