The growing business of prepping

Preparing for the worst might sound a little paranoid, but more people are embracing the prepper mindset and buying emergency supplies. As preparedness becomes a growing business, we visit a survival demonstration, speak to a supplier of emergency kit, and hear from a Swedish Civil Defence official. What's behind the rise of prepping, and why are so many people getting ready for the unexpected? Presenter: David Harper Producer: Victoria Hastings You can email the team: businessdaily@bbc.co.uk