What will win: Your new phone or the planet?

We use our smartphones for hours every day, but do you know what goes into making it? And more importantly, where are those metals going to come from in the future? Plus, Twitter lets go of one of its weirder and more pointless features. And is virtual reality a way forward for a struggling music industry and why is the gambling industry investing so heavily in Artificial Intelligence? Guests: Jennifer Dudley-Nicholson, National Technology Editor for News Corp & Daniel Van Boom, News Editor for CNET