It is the nature of the beast.... 
"Quit nagging me! You're concerned? How about me? I'm outta beer!" 
Exactly. My wife has suddenly become concerned about this for some reason. We knew the target sites well in the cold war and knew were the “exclusion” zones are... not many and not really.
The threat, real or imagined, probably much more real than now, was well known. A lot of school boys could list the targets nearest their home from memory.
It is the nature of the beast....
"Quit nagging me! You're concerned? How about me? I'm outta beer!"