President Donald Trump says a drone port, complete with armed unmanned aerial vehicles and gun-toting troops, is needed atop the new White House ballroom to safeguard the 18-acre complex and Washington, D.C. - but the Secret Service is already operating one right next door.
A few hundred feet away, small UAVs equipped with camera systems and sensory technology remain on standby to monitor potential risks from above until called into action by law enforcement personnel.
