Secretary Kristi Noem unveiled a multimillion-dollar ad campaign warning immigrants in the U.S. illegally to either ...

U.S. authorities say arrests for illegal border crossings from Mexico plunged 39% in January, an early gauge of President Donald Trump's immigration crackdown.

The Department of Homeland Security launched a multimillion-dollar ad Tuesday directed at those who try to come to the United States illegally, saying: Don’t try it.