As missiles rain down on the Middle East, Trey Yingst fires off salvos of news from his smartphone. The 32-year-old chief foreign correspondent of Fox News dons a flak jacket and stands on a Tel Aviv balcony to file reports several times a day. His main audience is on cable. But Mr Yingst has cultivated another set of viewers on TikTok, where he posts bulletins to 1m followers. He is such a prolific poster that viewers sometimes enquire after his safety when he has been offline for more than a few hours.
