Emergency management -- 4 Terrorism -- 3 National security -- 2 Case studies. -- 1 Civil defense -- 1 Defenses 1 Disaster relief -- 1 more ... Economic aspects -- 1 Emergency communication system -- 1 Government spending policy -- 1 Investment analysis 1 Investments -- 1 Natural disasters -- 1 Portfolio management 1 Prevention -- 1 Prevention. -- 1 Risk management -- 1 Safety measures 1 Stocks -- 1 War -- 1 War on Terrorism, 2001-2009 1 Weapons of mass destruction 1 Weapons of mass destruction -- 1 less ...