Official secrets 56 History 15 Government information 14 Freedom of information 12 Leaks (Disclosure of information) 12 Executive privilege (Government information) 11 Law and legislation 8 Mais ... National security 8 Political aspects 8 Politics and government 8 Security classification (Government documents) 8 Transparency in government 7 Access control 5 Foreign relations 5 Intelligence service 5 Deception 4 Freedom of the press 4 Presidents 4 Defense information, Classified 3 Electronic surveillance 3 Government policy 3 Military policy 3 Political and social views 3 Social life and customs 3 Whistle blowing 3 Censorship 2 Cold War 2 Computer crimes 2 Conspiracies 2 Freedom of speech 2 menos ...