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Should pig swill from waste food be back on the menu?

21 August 2013 Last updated at 10:25 BST

As recently as the 1990s "pig bins", into which uneaten food was placed, were a familiar sight in schools and canteens across the UK, but all of that changed when the foot-and-mouth crisis hit in 2001.

Concerns that the outbreak had started on a farm where pigs had been illegally fed unprocessed restaurant waste led to a nationwide ban on using waste from homes and catering outlets as animal feed.

In 2003 the UK ban was rolled out to the whole of the European Union.

Newsnight has been examining whether a campaign lobbying for a return to the age-old practice of feeding leftover food to pigs is a good idea or not.

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