Why the UK has a food security problem – video

At one point Britain was able to produce more than 80% of the food it consumed. Today it is 57%, meaning the country cannot produce enough to feed its population, a situation described by the government as a national security risk. So, what happened? Josh Toussaint-Strauss looks back at how we got here, and explores the reasons why the UK is at a high risk of food shortages and how it compares with other countries