This (https://www.independent.co.uk/news/uk/home-news/stock-up-food-emergency-kit-uk-government-b3073203.html) is like the fourth news item I've seen about this in the past 24 hours. Likely just the Brits following the same path as Ready.gov here in the states. But part of me wonders if something more concrete is afoot.
(https://encrypted-tbn0.gstatic.com/images?q=tbn:ANd9GcTxEzfBP2F1bddcS2bPcxnOhXRqjzb7pi4wrVBtQcuWPoyN9kk4e_8Irpfw&s=10)