The ACLU of Maryland and other civil liberties groups are concerned by reports that Maryland police are using sophisticated facial recognition technologies to identify people by matching them against millions of images from the state's motor vehicle archives. We share those concerns, even as we recognize the technology's potential to assist in legitimate law enforcement activities. Though the technology is still in its infancy, it is developing rapidly. Even if it doesn't pose an immediate threat to citizens' privacy rights, there's no assurance it won't in the future. In the interests of transparency, the public needs to know where and for what purpose the equipment is being used and what guidelines, if any, are in place to ensure against its misuse.