The Pentagon’s latest report makes one thing clear: Signal protects conversations, but it was never designed to safeguard U.S. war plans — and using it that way carried real risk for American forces.

BEIJING—China’s leaders signaled a more forceful policy approach to shoring up the economy as Beijing braces for trade tensions under the incoming Trump administration, employing language they haven’t ...

Signs that an individual might be on the verge of self-harm are often found in their online actions, but can word choices in posts indicate who is at particular risk and when? The results also ...