Homeland Security Secretary Kristi Noem said Tuesday that the entire wall along the U.S.-Mexico border is going to be painted black to make it hotter and deter illegal immigration — an idea she said was "specifically at the request" of President Trump.

Noem spoke during a visit to a portion of the wall in New Mexico, where she also picked up a roller brush to help out with the painting.

She touted the height of the wall as well as its depth as ways to deter people seeking to go over or under the walls. And Noem said Homeland Security was going to be trying black paint to make the metal hotter.

"That is specifically at the request of the president, who understands that in the hot temperatures down here when something is painted black it gets even warmer and it will make it even harder fo

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