Credit: John Hopkins University/Cover Images A surgical robot trained using videos of real procedures has successfully ...

Some police departments are experimenting with robotic dogs to keep emergency responders out of harm’s way as they scout for dangers. But privacy watchdogs say they can be aggressive and invasive.

Some police departments are experimenting with robotic dogs to keep emergency responders out of harm’s way as they scout for dangers. But privacy watchdogs say they can be aggressive and invasive.

Some police departments are experimenting with robotic dogs to keep emergency responders out of harm’s way as they scout for dangers. But privacy watchdogs say they can be aggressive and invasive.

Some police departments are experimenting with robotic dogs to keep emergency responders out of harm’s way as they scout for dangers. But privacy watchdogs say they can be aggressive and invasive.