Because clearly some random crazy guy was a terrorist. And not two hard-core Muslims with an armory and bombs.
We don't yet know the motive behind the San Bernardino shooting. Was it terrorism or his the guy go postal. Sit on your hands until we know more.
The only thing we know is he used an legally obtained semi auto with high capacity magazines. For that reason anyone who has found against controlling these weapons is culpable in this shooting.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.