This Way Up for Saturday 11 December 2010 This Way Up

We're foraging for free food with Johanna Knox. This week, we get cordial on the hunt for elderflower.

Hunger and snacking explained by Professor Roger Lentle of Massey University.

Frances Wood of the British Library on the restoration of the Diamond Sutra, a book printed in 868 AD.

New Scientist writer Jim Giles on data problems when using smart phones in urban areas.

We head to the UK to chat to expat journo Chris Parkin. The world's hottest chilli, cloned meat and dirty magazines.

Our resident sauce queen Maggie Forrest on the origins and ingredients of worcestershire sauce.

Ben Gracewood with the latest on the cyberwar surrounding Wikileaks. Plus the plans for ultrafast broadband roll out in New Zealand.

Meena Kadri in Mumbai on a savings scheme for the poorest people in Dharavi slum.

This Way Up for Saturday 11 December 2010