History -- Prevention -- Government policy -- 3 Terrorism -- 3 National security -- 2 Biological warfare 1 Biological weapons 1 more ... Bioterrorism -- 1 Counterinsurgency -- 1 Cross- cultural studies 1 Emergency management -- 1 Foreign relations 1 Foreign relations -- 1 Guerrillas -- 1 History 1 History. -- 1 Military policy 1 Political crimes and offenses -- 1 Public health -- 1 Secret service -- 1 Security, International -- 1 Soviet Union -- 1 less ...