Tinned mackerel, hand-crank radios and bags for poo: crisis-prepping guides around the world

UK allies have long urged people to stockpile supplies for a crisis. How are people from France to Australia being advised to prepare?

The UK has told people to fill their pantries with food for three days in case of catastrophe, joining a host of countries urging citizens to ready themselves for core systems failing. Such advice, once dismissed as the preserve of preppers , has become more common in government…