Subject
National security
United States Foreign relations
341
Terrorism Prevention
324
United States Military policy
223
Rules and practice
138
Intelligence service
129
Security, International
116
Appropriations and expenditures
100
United States Defenses
89
Military planning
84
Management
83
Evaluation
82
Terrorism Prevention Government policy
79
Emergency management
70
United States Armed Forces
67
United States Armed Forces Operational readiness
67
Border security
66
Cyberterrorism Prevention
61
Terrorism
60
United States Military relations
60
Russia (Federation) Foreign relations
55
Export controls
53
Computer security
50
Nuclear nonproliferation
50
Interagency coordination
49
Planning
49
Nuclear weapons
48
Economic sanctions, American
44
China Foreign relations
43
Civil defense
43
Military assistance, American
43
Political stability
41
Weapons of mass destruction
41
Deterrence (Strategy)
40
Terrorism Religious aspects Islam
40
Energy policy
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
33
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 ...