During a Congressional hearing on Wednesday, Waymo’s chief safety officer, Mauricio Peña, was grilled over the company’s use of Chinese-made vehicles and reliance on overseas workers, as Business Insider reports. While that may sound like the remote operator isn’t directly controlling the vehicle’s driving responses, it nonetheless goes to show how autonomous vehicles still rely substantially on human intellect. Fleet response agents may determine what lane a vehicle should pick, or propose a “path for the vehicle to consider,” as the blog post explains. It’s an especially glaring subject as lawmakers continue to ponder the risks of having autonomous vehicles coexist with human drivers on the road. More on Waymo: Waymo Under Investigation After Crashing Into Child Outside Elementary School