DAISUKE WAKABAYASHI:

Waymo, the self-driving car business spun out of Google’s parent company last year, asked a federal court on Friday to block Uber’s work on a competing self-driving vehicle that Waymo claimed could be using stolen technology.
 
 Waymo also filed testimony from employees and a Google security engineer describing how Anthony Levandowski, a former Google executive, discussed Uber’s interest in the technology and systematically stole proprietary company documents. In February 2016, Mr. Levandowski left to start his own self-driving truck company, Otto. He sold it to Uber for $680 million six months later.