They're currently roaming around parts of 16 states, paired with local security teams.
The future of security is already here, and it's straight out of the long-running "Dr. Who" television shows.
The robots are able to observe people walking on the sidewalks, record license plate numbers, detect the heat in objects, and see which cellphone serial numbers are within a designated patrolling area.
They send their observational data back to security teams via an internet portal.
