Europe says 'emerging threats' mean people should stockpile enough supplies for 72 hours. Here's what experts suggest.

Source: Business Insider

The EU advised its citizens to stockpile three-days worth of supplies in case of major crises. FilippoBacci/Getty ImagesThe European Union advised citizens to stockpile 72 hours of supplies for potential crises. It's part of a wider strategy to enhance Europe's response to emerging threats.