it is very sensitive but an international issue which poses serious dangers to world community specially when they have targetted a nation most powerful in world is a complex issue which requires a lot of study to control the possible attacks in future with multidisciplinary approach to combat terrorism which is guided by number of factors like overnationalism/racism/poverty/illiteracy/lackof education /lackof understanding between nations while dealing with such problems in my opinion becomes complex due to lack of communication expression brain washing or forced training for terrorism