The defense secretary’s handling of sensitive information is under criticism after he shared details about a strike on Houthi ...

While files marked “confidential” contain information that’s not meant to be released, the need for security or access ...

The often bureaucratic nature of classified information is complicated, with different levels of secrecy and different ...

The top Republican and Democrat on the Senate Armed Services Committee requested an investigation Thursday into how Trump ...

Here's what we know about whether officials shared classified intel in leaked group chat that included the editor-in-chief of The Atlantic.

Under questioning from senators, the C.I.A. chief and the director of national intelligence pointed to the defense secretary ...

The Trump administration’s use of Signal for military discussions, including a journalist, raises national security concerns.

Lawmakers are demanding answers after Trump-era officials used the Signal app to discuss military strikes. A federal judge ...

Republican and Democratic leaders on the Senate Armed Services Committee are requesting a formal investigation into the ...

President Donald Trump told NBC News that the lapse “turned out not to be a serious one," and expressed his continued support ...

Colo., told Morning Edition that "the risk of casualties goes up tremendously" if adversaries learn of military operations.

Sensitive military documents were found in a Newcastle street by a football fan ahead of the Carabao Cup Final ...