Tech Tent: Autonomous cars and AI doctors

Was this the week that the space age vision of a car that drives itself became a reality? And are claims that artificial intelligence can transform healthcare a bit overhyped? On this week's Tech Tent podcast we explore the potential and limits of technology in health and transport. This week we woke up to the fact that autonomous cars could be with us sooner than we thought. That was the message from John Krafcik, chief executive of Waymo, the self-driving car division of Google - or Alphabet as we must learn to call it.