WASHINGTON — Homeland Security Secretary Kristi Noem said Tuesday that the entire border wall along the southern border with Mexico is going to be painted black to make it hotter and deter illegal immigration — and she credited President Trump with the idea.

U.S. Homeland Security Secretary Kristi Noem said the nation's southern border walls will be painted black to better repel anyone who might try to scale them.

Noem announced Tuesday that the U.S.-Mexico border wall is being painted black in an attempt to make it more difficult for migrants to climb.