The AI industry is controlled by only a few powerful companies. Is that concentration of power dangerous? WSJ's Sam Schechner interviews Meredith Whittaker, president of encrypted messaging app Signal, at a live event at the World Economic Forum in Davos, Switzerland. Further Reading and Watching: -The Importance of Privacy in the Age of AI  -Altman and Nadella Talk AI at Davos  Further Listening: -Artificial: The Open AI Story  -Why an AI Pioneer Is Worried  Learn more about your ad choices. Visit megaphone.fm/adchoices