Amazon.com Inc. exercised “overwhelming control” over subcontracted drivers it claimed weren’t its employees, US labor board attorneys told a judge Monday.“Amazon structured its logistics network to maintain all the benefits of control while denying any responsibility as an employer,” Sanam Yasseri, a lawyer for the general counsel of the National Labor Relations Board, told an agency judge during opening statements at a hearing in Los Angeles. “It controls every minute of the drivers’ day.”...