Terrorism 110 Prevention 101 Government policy 63 Economic aspects 57 Economic conditions 49 Housing subsidies 49 Evaluation 44 more ... Mathematical models 42 Finance 34 Housing 34 POLITICAL SCIENCE 32 Foreign economic relations 30 Economic policy 28 Population 28 Terrorisme 27 Prévention 26 Costs 25 Employment 25 Forecasting 22 International economic relations 22 Police 21 Law enforcement 20 Public welfare 20 Technological innovations 20 National security 19 Policy sciences 19 Drug abuse 18 General 18 Political Freedom & Security 18 Criminal justice, Administration of 17 less ...