Prevention -- Terrorism -- National security -- 6 Congresses 4 Congresses -- 4 Government policy 2 African American police -- 1 more ... Crisis management 1 Cross, Alex (Fictitious character) -- 1 Defenses -- 1 Emergency management -- 1 Fiction 1 Fiction -- 1 Hostages 1 International cooperation -- 1 Police -- 1 Police psyschologists -- 1 Political planning -- 1 Political violence -- 1 Security, International -- 1 White House 1 congresses 1 less ...