How comfortable would you feel getting into a vehicle driven by a computer? Versions of the driver-less car are now a reality, already on public roads in Singapore and as a taxi service in the city of Pittsburgh in the United States. But can a computer safely navigate complex, unpredictable situations in poor visibility? And can government legislation keep up with the fast-changing pace of technological progress? Owen Bennett Jones and his guests consider the safety of this new technology and who should take responsibility when things go wrong. (Photo: Cars driving into a sunset in Johannesburg. Credit: Getty Images)