Border security

Donald Trump's 'great wall' will be invisible in some parts, Homeland Security chief suggests

Donald Trump is going to build his border wall but some parts of it might be invisible, according to the man tasked with building it.

Despite Mr Trump's repeated promises to build an actual wall, it might actually rely on surveillance technology and not actually be made using any physical structure, according to Homeland Security Secretary John Kelly.

“Kelly said the wall will take a multi-layered approach,” Fox News reporter Catherine Herridge said. “There will be the physical wall and then parts of the wall that you can actually see through because it will rely on sensors and other technology.”