Terrorism is the systematic use of terror especially as a means of coercion. This book presents and reviews important data on terrorism such as: the role of the European Union in the implementation of individual measures against international terrorists; educational background and what predisposes people to join extremist movements; the legal challenges pertaining to the prevention and detection of internet abuse for terrorist activities; the role of emotions that lead to terrorism; the socio-legal consequences of the political reframing of terrorism post 9/11; the impact of terrorist attacks on passenger travel; the risk to water ecosystems from terrorist attacks; a mathematical model of military and non-military procedures to counter terrorism; and others.