Terrorists like the Charleston church shooter will often use the Internet to share their hatred. Some seemed compelled to do it.
In order to create soldiers or terrorists willing to commit suicide against and enemy, religion is needed. This means that countries which cannot afford well equipped modern armies, religion will play an important role.
We, in the western world like to think that Christianity would not play the suicide game. That kind of thinking is flawed. The men who run religion will hold on to power by all means. If suicide techniques become necessary, they will be implemented.