We expect companies selling products to make them as available as possible. But now some of them are bringing back rationing.

In the UK, we throw away more than 7 million tonnes of food and drink from our homes every year.

In Christmas-celebrating nations, millions of pounds a year are spent on corporate Christmas gifts.

The fall from grace of retired General David Petraeus, once America's most prominent post-9/11 military leader, has surprised a nation.