As many as 3.7 million Americans are classified as preppers or survivalists. Being a "doomsday prepper" is not easy -- or cheap. These people prepare for different disasters for different reasons.

When news breaks, you need to understand what actually matters. At Vox, our mission is to help you make sense of the world — and that work has never been more vital. But we can’t do it on our own. We ...

Shoppers line up outside a Costco to buy supplies after the Hawaii Department of Health on Wednesday advised residents they should stock up on a 14-day supply of food, water and other necessities for ...

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