Waltz was removed from his job as national security adviser after he accidentally added a journalist to his Signal chat about an attack on Houthis.

Mike Waltz, Trump's former national security adviser, faced questions from Democrats on the Signal chat controversy Tuesday ...

Months after the chat was disclosed, questions remain over the controversy, including if federal laws were violated and if ...

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Astronomers in Australia picked up a strange radio signal in June 2024 — one near our planet and so powerful that, for a moment, it outshined everything else in the sky. The ensuing search for its ...

Grand Rapids-based US Signal is investing $200 million to grow its data centers and lay high-density fiber lines across the Midwest.

Until recent news involving the Signal app, it was a relatively unknown messaging app compared with WhatsApp to many nontechnical users.

Rash: An intelligence analyst’s smart take on the Signal chat Jon Olson, a retired Naval intelligence officer who now teaches at Carleton and the Humphrey School, assesses the issue.

THE ROW over Mike Waltz’s security slip-up rages on. On March 11th America’s national security adviser accidentally added Jeffrey Goldberg, the editor-in-chief of the Atlantic, a magazine, to ...

War plan or battle plan? Classified or not? The answers to those questions amount to a distinction without much of a difference.