President Donald Trump vowed Sunday to “avenge” the deaths of three U.S. service members killed in action as the conflict involving Iran deepens across the Middle East. “As one nation, we grieve for the true American patriots who have made the ultimate sacrifice for our nation,” Trump said in a video statement posted on Truth Social.  “Even as we continue the righteous mission for which they gave their...

American counterterrorism agencies are quietly monitoring suspected sleeper cells on U.S. soil in the wake of joint U.S.–Israel strikes on Iran, stepping up surveillance amid heightened fears of possible retaliation from Iran-linked operatives or sympathizers. Federal and local law enforcement have also boosted on-the-ground security in major U.S. cities as part of a precautionary posture, even though no specific, credible threats have been publicly identified. The move comes...