Trump plan to move Israeli embassy from Tel Aviv to Jerusalem poses challenges

A diplomatic mission in the city would have to be fitted with state-of-the-art security measures, would likely cost hundreds of millions of dollars and take years to complete.

“I think it’s going to be a tremendous challenge, and the biggest challenge is going to be the design of it,” said Christopher Hagon, managing director of Incident Management Group, a Florida-based security consultancy. “You cannot guess at it — you have to extrapolate every possibility and work all these things through.”

Hagon, who was personal protection officer to Britain’s Queen Elizabeth II in the 1980s, said the building would need three levels of security: physical, technical, and procedural.

Physical measures, he said, are anything that would stop a would-be bomber or gunman entering the premises. This includes the design of the nearby roads, the presence of armed personnel, and a likely network of blast-proof doors and windows.