This was the year that coronavirus fears turned American shoppers into hoarders. There have been widespread shortages on products like toilet paper, hand sanitizer and flour as people prepared for the long stretches of isolation that have become commonplace during the pandemic.

But for one segment of the population, preparing for the worst was a way of life even before the pandemic. "Preppers" or "survivalists," as they're known, have been around for years, buying elaborate survival kits, yearlong supplies of nonperishable foods and even elaborate underground bunkers.