Waymo is recalling over 3,800 robotaxis due to a risk associated with construction zones. The recall appears to be related to the vehicles' navigation system, which may cause them to enter closed or restricted areas, including freeway construction zones. However, there is some uncertainty about the specifics of the issue, with one report suggesting a robotaxi was involved in an incident where it was swept into a creek, while others focus on the risk of entering construction zones.