More than 150 academics, business leaders and community groups have sent an open letter to Andy Burnham warning that Britain has no national plan for feeding people in an emergency and that the government is "complacent about food as a national security matter". They say the "just-in-time" supply chain holds little stock, the UK has no national food storage since the wartime strategic stockpile was wound up in the 1990s, and the system is exposed to climate, cyber and geopolitical shocks; they urge local resilience committees, an audit of reliance on imports and a few large firms, and community food stores. The warning follows a rebuke from the National Audit Office (the public spending watchdog) and comes as ministers advise households to keep several days of food and water, a stance the signatories say overlooks lower-income families who cannot afford to stockpile.