Thousands of people across the United States poured into the streets this week to protest the Trump administration’s immigration policies, joining a nationwide wave of resistance that began in Los Angeles. One of the most widely shared images from the city, where federal authorities have sent almost 5,000 active-duty Marines and National Guard members, is of five Waymo robotaxis that were vandalized and set on fire. The incident has become one of the most recognizable symbols of the demonstrations so far, and prompted Waymo to temporarily shut off service in several parts of the city as well as parts of San Francisco on Monday.
The charred Waymo cars have also raised fresh questions about what kinds of technology authorities can use to surveil protesters and potentially collect evidence to make arrests. According to Waymo’s website, its latest driverless cars have 29 external cameras, providing “a simultaneous 360° view around the vehicle,” as well as an unknown number of internal ones.
Over the past several years, Waymo has repeatedly shared video footage with police after receiving formal legal requests. But it’s not clear how often the self-driving company, which is owned by Google’s parent organization Alphabet, complies with these demands. Unlike Google, Waymo doesn’t disclose the number of legal requests it receives nor how it responds to them. When police do obtain footage, they could also combine it with other technology—like face recognition or nonbiometric tools for finding and tracking people in videoclips—to identify possible criminal suspects.
Waymo spokesperson Sandy Karp tells WIRED that the company's general policy is to challenge data requests that are overly broad or lack sound legal basis, but it doesn’t disclose or comment on specific cases. Karp pointed to Waymo’s privacy policy, which acknowledges that the company may share user data to comply with laws and governmental requests. A separate support page for Waymo One, the dedicated app for its robotaxi service, notes that the company “may share certain data with law enforcement as needed to comply with legal requirements, enforce agreements, and protect the safety of you and others.”
It’s not clear how much, if any, of the video footage potentially captured by the burned Waymos in Los Angeles may have been destroyed along with the cars. Waymo doesn’t specify whether the data collected by its robotaxis is stored locally in the vehicle itself or externally in the cloud. The company previously told The Washington Post that “interior camera data” isn’t stored alongside the data from external cameras.
If any footage does still exist from the destroyed vehicles, Waymo doesn’t disclose how long it may remain available. Waymo’s website and privacy policy do not specify how long the company retains camera footage captured inside or outside its vehicles. For years, self-driving companies like Waymo retained large amounts of information collected by their cars for training purposes and to optimize the underlying technology. The company has generally been trending more recently toward deleting data sooner, WIRED previously reported, though it’s unclear whether some types may be stored longer than others.