National security agencies in some cases use polygraph tests to determine the source of leaks to the news media.

A suspect has been arrested in connection with the theft of U.S. Homeland Security Secretary Kristi Noem's purse at a ...

It’s the latest effort by the Trump administration to track down more than 320,000 migrant children who went missing under ...

The Trump administration was forced to reveal new information Tuesday about its ham-handed and legally dubious operation to cancel the immigration records of thousands of international students that a ...

Attorneys for the Department of Homeland Security say the agency didn’t violate a judge’s order detailing when people may be ...

Trump's executive orders threaten to revoke federal funding from cities that do not coordinate with federal immigration ...

UD students with visas terminated by the Trump administration without warning this month have seen their records restored, as ...

The wife of an active-duty Coast Guardsman was arrested earlier this week by federal immigration authorities inside the ...

Defense Secretary Pete Hegseth moved to cancel a program that promoted the participation of women in national security, ...

The Department of Homeland Security is demanding "detailed records" on Harvard's student visa holders as the feud between the ...

Millions of legal immigrants, many of them Hispanic, have faced renewed uncertainty about their future in the U.S. during the first 100 days of the Trump administration, as the government launched an ...