Continuing pictures of empty shelves at UK supermarkets have sparked ongoing worries about food shortages.
The supermarkets are confident that they can cope, not least because there is a limit to how much people can sensibly stockpile. So they believe that shopping patterns should return to normal eventually.
But the coronavirus pandemic has awakened wider fears about the security and strength of the hugely complicated supply chains, or logistics systems, that modern societies depend on.
There is an old military saying that while “amateurs talk about…