Donald Trump’s deputy chief of staff Stephen Miller and his wife, Katie, have become embroiled in a bitter and still escalating feud between the president and billionaire Elon Musk. Katie Miller served as a top spokesperson for the White House and

Duolingo CEO Luis von Ahn is having major regrets after widely bragging about replacing his human staffers with AI. Earlier this year, von Ahn boasted that the language learning app company would "gradually stop using contractors to do work that AI