Uber self-driving car kills Arizona pedestrian

Ride-sharing giant Uber said Monday it is suspending its self-driving car program after one of the vehicles struck and killed a pedestrian in the US state of Arizona.Uber has suspend use of self-driving cars it was testing or using in Tempe, Pittsburgh, Toronto, and San Francisco, according to the company.Uber was only using autonomous vehicles as part of its regular passenger service in Pittsburgh and Tempe.