Overview: Iran's top nuclear scientist is assassinated in a brazen daylight attack that may involve remote controlled weaponry assisted by artificial intelligence. On a quiet night in Arizona, a driverless car is out for a test drive when it fails to recognize a pedestrian in its path. At a famous auction house, a French portrait created by an algorithm goes up for sale, stoking controversy in the art world. In Japan, doctors turn to big data to diagnose a woman's illness when attempted treatments prove ineffective.