Secretary of War Pete Hegseth "acted within his authority" by sharing sensitive details about Houthi strikes over Signal, Armed Services Chairman Roger Wicker said after viewing a report from the ...

Mike Waltz, the departing national security adviser at the center of "Signalgate," is seen in new photos using the commercial messaging application during a Cabinet meeting held by President Donald ...

DOGE staff are reportedly using Signal to communicate. The revelation follows the news that national security leaders used Signal to discuss war plans. DOGE has increasingly come under fire for a lack ...

Your habit of signaling in a roundabout could be causing more traffic than it solves. Find out why lawmakers are trying to rewrite the rules of the road.

Why is Christian Science in our name? Our name is about honesty. The Monitor is owned by The First Church of Christ, Scientist, and we’ve always been transparent about that. The church publishes the ...

Penn Engineers have developed a system that lets robots see around corners using radio waves processed by AI, a capability ...

Former national security adviser Mike Waltz was photographed using a Signal-like messaging app during Wednesday’s Cabinet meeting, more than a month after he first came under intense scrutiny for ...

A photo taken by Reuters' Evelyn Hockstein during a Cabinet meeting Wednesday shows Waltz holding his phone below the table, with the encrypted-texting app open and visible. It also shows Waltz in ...

On ThursdaY, Reuters published a photo depicting then-United States national security adviser Mike Waltz checking his phone during a cabinet meeting held by President Trump in the White House. If you ...