You have many reasons to be afraid Kagom. There everywhere.... And I'm one of them... So be afraid!
You should be like one of the iditiots in the fifties who thought they could survive a hydrogen bomb falling on them, if they built a basement. Sure, they called it a bomb shelter, but how effective would they actually have been if we were attacked?
Well anyway, go dig your shelter and stock up for WWIII. The World vs. USA.