SANTA TERESA, N.M. (NewsNation) – Homeland Security Secretary Kristi Noem announced Tuesday that the U.S.-Mexico border wall will be painted black at President Donald Trump's specific request, saying the darker color will make the barrier even more difficult to climb in hot weather.

“There will be more added to it as far as technology, cameras, sensors — we’re also going to be painting it black,” Noem said. “That is specifically at the request of the president. When something is painted black, it gets even warmer, making it even harder for people to climb.”

Noem said the black paint serves dual purposes: protecting the steel structure from rust and making it hot to touch during the region's high temperatures.

The painting project marks a return to Trump's original border wall prototype

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