They were waiting for the Big One. Then coronavirus arrived.

https://www.technologyreview.com/2020/04/15/999514/oregon-preppers-the-big-one-coronavirus-disaster-preparedness/?truid=e6a9a97f971519b8818ba7420a6d576d&utm_source=the_download&utm_medium=email&utm_campaign=the_download.unpaid.engagement&utm_content=04-29-2020#Echobox=1588087990