Sebastian Thrun - nanodegrees & flying cars

Sebastian Thrun is an innovator, entrepreneur and computer scientist who led the development of the Google self driving car. He's now on a mission to "democratise education", though Udacity, an innovative online educator that provides "nanodegree" programmes, which cost a few hundred dollars, take a few months and are tailored to needs outlined by employers. He's also the chief executive of the Kitty Hawk Corporation, which launched a flying car earlier this year in the United States. He talks to Kathryn about the challenges and opportunities of disruptive technology.