An employee looks on as a robot carries packages at the Amazon Fulfillment center in Robbinsville Township, N.J., Wednesday, Aug. 2, 2017.
An employee looks on as a robot carries packages at the Amazon Fulfillment center in Robbinsville Township, N.J., Wednesday, Aug. 2, 2017. Julio Cortez AP file
An employee looks on as a robot carries packages at the Amazon Fulfillment center in Robbinsville Township, N.J., Wednesday, Aug. 2, 2017. Julio Cortez AP file