Sales for private underground bunkers, or fallout shelters, increased this year, and they're predicted to grow.

A private nuclear fallout shelter has long been a perk of the ultrawealthy. Mark Zuckerberg, Kim Kardashian, and Bill Gates ...

The homegrown air defense system could track, intercept and destroy the bunker buster in less than 15 seconds at a distance of 17 kilometers away from the nuclear site.