Technology: Is Google search dying, and careful with your DNA

Technology commentator Mark Pesce joins Kathryn to talk about whether Google search has optimised itself to deliver ads, rather than worthwhile search results. What happens if Google continues to decline - will we be unable to access decent information because money has been prioritised over functionality? And should you rethink that ancestry test? Mark has some concerning examples of where DNA has been used in ways the person it belongs to didn't expect.