As Ive been watching the news and rhetoric over the last over the fear of terrorism over the last 14 years since 9/11.
I always remember we've lived, or at least some of us have lived in far more dangerous times.
Back in the early 60's for example. I remember in grade school we had two types of fire drills. On where as today when the bell goes off we all line up and calmly walk outside.
Then there was the other drill where we all lined up and walked down into the school basement and stood under a sign that looked like this

I remember conversing with my 1st grade classmates about why we were down there and the thing a nuclear bomb could do. We werent scared. But we were aware of the situation. Probably like today moreso then parents think.
So. I dont fear terrorism. Any terrorist attack. Even nuclear is likely to be very local, or confined to reasonably small areas.
Then there was the time we almost nuked ourselves
http://www.slate.com/blogs/future_tense/2013/09/20/goldsboro_nuclear_accident_declassified_document_u_s_nearly_nuked_north.html