Around the festivities and parade route, there will be more than 18 miles of fencing, 17 miles of bike rack concrete barriers, and 175 magnetometers for attendees to pass through.

“We’re preparing for an enormous turnout,” said Matt McCool of the Secret Service’s Washington Field office, who said more ...

“We’re preparing for an enormous turnout,” said Matt McCool of the Secret Service's Washington Field office, who said more than 18 miles of “anti-scale fencing” would be erected and “multiple drones” ...