|The "end of the world is nigh" philosophy has been a driving force with some sections of the community for at least 5000 years|
You gotta love the doomsayers.
Think back just a few years and you'll remember they were all saying:
"The worlds going to end in the year 2000"
When we all woke up Jan 1/2000 they started saying, "Oh, small mathematical error in the calendar, it's actually going to end in 2001. On Jan 1/2001 they said, oops, another miscount, we actually meant 2007. On Jan 1/2007 they said, "Oh no wait, according to the Mayan calendar, it's going to end in 2012"
You notice they never shut up when proven wrong. They just blame someone, or something else, and pick another date randomly out of a hat.
These are the folks that wear tinfoil hats to keep the aliens from scanning their brains (sorry folks, hate to break it to you but even if the aliens were actually scanning human brains they'd skip your obviously inadequate and underequipped empty heads).
There will always be the paranoid doomsayers in our world. Other than something to laugh at (they ARE hilarious) , I have no use for them and waste not a second listening to them and even less time believing them.
There have been, and likely always will be people building bomb shelters in their backyards. I have no doubt there are many underground goverment bunkers around the world. After all, the world is full of paranoid people and the more powerful they are, the more paranoid they seem to be.