President-elect Donald Trump has more than an army of Secret Service agents protecting him at his Mar-a-Lago home in Florida.

The “high-tech hound,” as the Secret Service has been known to call it, was filmed walking the perimeter of the Palm Beach property alongside an agent.

“DO NOT PET” reads a large warning on its side. The remote-controlled robot dog, made by Boston Dynamics, is with the United States Secret Service, the agency confirmed. “Safeguarding the ...