Yes there are somany causes but terrorism is not the answer.It is a waste of men and materials.It should be curbed. It is a menace to the humanity irrespctive of religioun or nationality,All peace loving right thinking nations should unite in this case and fight together.Pervez Musharef of pakisthan has done so many good things for tackling this to some extend.The people of all religions should raise their voice and direct the respective governmentsand find a solution for the survival of humanity.