Alva Review-Courier -

SCOTTSDALE, Ariz. (AP) — At a time when big-box retailers are trying to offer the same conveniences as their online competitors, the biggest U.S. grocery chain is testing the use of driverless cars to deliver groceries in a Phoenix suburb.

Kroger's pilot program launched Thursday morning with a robotic vehicle parked outside one of its own Fry's supermarkets in Scottsdale. A store clerk loaded the back seat with full grocery bags. A man was in the driver's seat and another was in the front passenger seat with a laptop. Both were there to monitor the car's performance.

Under the self-driving se...