Waymo is under investigation by U.S. authorities after reports emerged of its self-driving vehicles illegally passing stopped school buses on numerous occasions, including at least 20 violations in Austin, Texas. The incidents have sparked concerns over the safety protocols of its robotaxi fleet, leading to a voluntary software recall to address these issues. The federal probe will examine footage showing Waymo vehicles bypassing school buses intended to protect children during drop-off and pickup. In response to these incidents, authorities have pressed Waymo for explanations while the company continues its operations, despite requests to halt service during peak hours. This situation raises significant questions about the safety of autonomous vehicles in urban environments.