Prevention Terrorism -- Terrorism 17 Psychological aspects 8 War on Terrorism, 2001-2009 8 Government policy 7 Prevention -- 7 more ... Psychology 6 Security measures 6 Terrorists -- 6 Islam 4 Religious aspects -- 4 Finance 3 Finance -- 3 History 3 Human rights 3 International cooperation 3 Social aspects 3 Aeronautics, Commercial -- 2 Airports -- 2 Hijacking of aircraft -- 2 Islam and politics 2 Jihad 2 Law and legislation 2 Merchant marine -- 2 Money laundering -- 2 Moral and ethical aspects 2 National security 2 National security -- 2 Prevention. -- 2 less ...