It is obvious that the events of September 11, 2001, triggered disputes about a detailed, comprehensive definition of terrorism. But there is still no unified or "universal" definition for terrorism. Such disputes will not result in an agreeable consensus and will make no notable benchmark towards the understanding of terrorism. This work tends to shed light on patterns, current trends and future threats of terrorism worldwide while stressing on the role of the Kingdom of Saudi Arabia and the negative and drastic effects and consequences it produces locally, regionally, and internation ...