Live updates: White House and China sign off on TikTok deal; Jack Smith defends Trump investigations

Follow live coverage from NBC News as President Donald Trump launches his Board of Peace at Davos and Denmark, Greenland ...

For Chris Pratt, AI is 'an awesome tool' but needs 'safeguards'

AI not only plays a major role in Chris Pratt's thriller "Mercy," it's part of his daily life. But he is mindful of having ...