Baidu, which operates China's largest search engine, said it received the regulatory approvals for its autonomous ride-hailing service Apollo Go to operate on open roads during the daytime in Chongqing and Wuhan. The cities have populations of some 30 million and 11 million people, respectively. The move represents a notable step forward for Baidu and a potential shift in China's comfort with the new technology. In other cities where the company's robotaxis operate, including Beijing, Shanghai and Shenzhen, Baidu is required to have a human safety operator present in the vehicle. "We have finally come to the moment that the...