TerroristThe biggest threat to any citizen of any country in the world today is a terrorist. Terrorist attacks are usually carried out in such a way as to maximize the severity and length of the psychological impact. Terror attacks like 9 11 will be remembered in history as major turning point in the  21 century. After 9 11 terrorism became number one enemy for most of the worlds population. Here is a list we compiled of the Top 10 most dangerous Terrorist Groups