Jonathan Kanter, who heads up the Justice Department’s antitrust division, believes that antitrust laws are critical for innovation — from ad tech to A.I. The assistant attorney general is bringing a new philosophy to enforcing those laws. So, how is his new approach to protecting competition playing out?Plus: Can you guess whether that was a bot, or not?On today’s episode:Jonathan Kanter is the assistant attorney general for the Justice Department’s antitrust division.Additional reading:Jonathan Kanter has long been a critic of big tech.The Justice Department has accused Google of abusing a monopoly over online advertising. Subscribe today at nytimes.com/podcasts or on Apple Podcasts and Spotify. You can also subscribe via your favorite podcast app here https://www.nytimes.com/activate-access/audio?source=podcatcher. For more podcasts and narrated articles, download The New York Times app at nytimes.com/app.