US Defense Secretary Pete Hegseth is back in the political hot seat as the Pentagon’s watchdog alleged he put American personnel and missions at risk by using the Signal messaging app to share sensitive details about a strike targeting Yemen’s Houthi militants. Trump administration officials used the encrypted app Signal to coordinate sensitive military strikes against Yemen’s Houthi militants in March — and the group chat accidentally included a journalist. Then–national security adviser Mike Waltz set up the chat with several of Trump’s top Cabinet officials but mistakenly added Jeffrey Goldberg, editor-in-chief of The Atlantic. And later, The Atlantic published additional text messages from the Signal group chat, underscoring a massive breach in operational security as specific se

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