The Atlantic magazine revealed an extraordinary national security blunder in the United States. Top US government officials ...

WASHINGTON – Officials from the Trump administration assured a judge Thursday they are preserving messages shared on the Signal app about ... plan highly sensitive military operations isn ...

The total cost of the US military’s operation against the Iran-backed Houthi militants in Yemen is nearing $1 billion in just ...

To discuss the Signal chat on military strikes, Amna Nawaz spoke with Republican Rep. Don Bacon of Nebraska. He spent nearly ...

A journalist was accidentally added to the Signal chat group discussing U.S. military attack plans on Houthi targets in Yemen. In the aftermath of that leak, revealed by Jeffrey Goldberg of The ...

President Trump said his national security adviser, Mike Waltz, "learned a lesson" after he opened up a secret chat of Trump ...

Did Defense Secretary Pete Hegseth’s messages detailing planned U.S. airstrikes in Yemen constitute a classified war plan?

NPR's Scott Simon talks to Steven Cash, former CIA officer and staff member on the Senate Intelligence Committee, about the fallout from the security breach involving defense plans and a group chat.

The Pentagon has not publicly disclosed what impact the daily US military strikes have actually ... Waltz referenced that Houthi leader in the Signal chat in March that was disclosed by The ...