The "more people die in car accidents" is a moot argument. Terrorism hits a nerve car accidents or w/e can't.

Here is the thing: When driving a car, you have some level of control of your destinity. Take precaution, use the seat belts, children seat, and so on... You know there is risk involved, but that you also can lower that risk.

Worrying that your next train trip, museum visit, or national day celebration will end up fatally, changes your way of life. You have zero control over that. You worry about those dearest to you.