Many Americans are fearing that we’ve provoked our most powerful enemy and put ourselves at risk," Rowan MacKenzie said.

Some luxury bunker companies told Business Insider interest spikes during geopolitical conflicts, including the one with Iran.

Todd Sampson meet Doomsday Preppers stockpiling food and weapons, learning survival skills, and building bunkers.

LONDON — It's a unique historical English property that could be perfect for a doomsday prepper. In fact, it was built to survive a nuclear blast. A Cold War-era bunker is going up for auction later ...

Add Yahoo as a preferred source to see more of our stories on Google. In a world where the unexpected can strike at any moment, a growing number of people are taking the concept of preparedness to ...

LONDON – It's a unique historical English property that could be perfect for a doomsday prepper. In fact, it was built to survive a nuclear blast. A Cold War era bunker is going up for auction later ...