Billionaire hedge fund manager Paul Tudor Jones sent a warning signal on Thursday, arguing that the U.S. is late to the game on artificial intelligence regulation. "We need to do it tomorrow," he told CNBC's " Squawk Box " on Thursday. "We're late already. We should have already done it." According to Jones, governments need to watermark AI to distinguish between real content and deepfakes. As he raised these concerns, Jones also told CNBC that he recently bought more AI stocks. Professionals