Richard Branson, Steve Bannon, Susan Rice, and others are among the broad coalition of leaders signing the Future of Life Institute's Pro-Human AI Declaration news nbcnews.com

Jared Perlo / NBC News: Richard Branson, Steve Bannon, Susan Rice, and others are among the broad coalition of leaders signing the Future of Life Institute's Pro-Human AI Declaration  —  An eclectic group including Steve Bannon, Glenn Beck, Richard Branson, Ralph Nader, Susan Rice and Nobel Prize-winning economist Daron Acemoglu signed the letter.