Intelligence service -- Terrorism -- Foreign relations -- 2 Government policy -- 2 National security -- 2 Governmental investigations -- 1 Human rights 1 more ... Moral and ethical aspects 1 Nuclear weapons information -- 1 Planning. -- 1 Political violence -- 1 Politics and government -- 1 Prevention 1 Prevention. -- 1 September 11 Terrorist Attacks, 2001 1 Subversive activities -- 1 Terrorism 1 War on Terrorism, 2001-2009 1 less ...