RNZ: This Way Up

Tech correspondent Peter Griffin with news of the arrival of the international online review service Yelp in New Zealand. Also a slightly sinister search engine called Shodan lets you search for unprotected webcams and other net-enabled gadgets.

Investigative journalist Michael Moss has just written 'Salt Sugar Fat: How the Food Giants Hooked Us'.

Dr Chris Smith with the latest on the H7N9 bird flu outbreak in China. Plus a timely paper in 'Nature' on a drug that blocks flu infections, and how honey helps bees stay healthy and cope with pesticides.

Chris Parkin in the UK, where cosmetic surgery cases have tripled over the past 5 years and now there's calls for greater regulation. Also the London primary school using mud huts in the playground to combat aircraft noise from Heathrow Airport.

We're making 'solar salt' at Lake Grassmere in Marlborough, turning seawater into table salt with a little help from the wind and the sun. With Dominion Salt's site manager George Williams, brineman Des McMillan, and salt harvesters Mark Morgan and Simon Bonniface.

Adam Harvey is designing urban camouflage to protect you from surveillance in the digital age.

Charles Arthur beams in with the latest from the world of technology.

Birdman Hugh Robertson is on the trail of the kaka, one of New Zealand's three species of parrot.

Naked Scientist Dr Chris Smith on patenting genes, and a new technique to help you remember stuff.

With body hair removal all the rage, the poor pubic louse has nowhere to live! Professor Basil Donovan of The Kirby Institute at the University of New South Wales is seeing a huge decline in the number of cases he's treating.

We chill out with Nicola Twilley of the Edible Geography blog. She's about to open a new exhibition in Los Angeles called 'The Artificial Cryosphere: A Guide to America's Cold Chain'.

Lee Paterson of Pinoli is growing pine nuts in Marlborough.

Dr Marilyn McGee-Lennon of The University of Glasgow is designing smart homes filled with smart devices that could revolutionise caring for the elderly.

Gary Burns loves figs and grows them near Blenheim.

We head to India where rampaging elephants threaten voters in some upcoming local elections. Also, fighting poaching with drones, and how India's become the pharmacy for the developing world. Anu Anand reports.