The rapid pace of development in the world of tech, particularly in AI, spurred a judge's cautious approach to curbing Google's online search monopoly, revealing a hurdle for U.S. antitrust enforcers' efforts to win their other cases against Big Tech. U.S. District Judge Amit Mehta ruled last year that Alphabet's Google holds an illegal monopoly, saying its dominance in online search "has gone unchallenged for well over a decade." But he declined on Tuesday to impose stringent requirements that