Counter-terrorism. Anti-terrorism legislation, Counter-insurgency, Detentions following the September 11 attacks, Intelligence cycle management, Telephone tapping, War in Afghanistan (2001 present), Close Quarters Battle, Counter-intelligence and counter-terrorism organizations, Sayeret Matkal, GSG 9, Royal Malaysian Navy PASKAL, Kopassus, Grup Gerak Khas, Pasukan Gerakan Khas, National Security Guards