The CEOs of Amazon, Apple, Facebook and Google encountered intense scrutiny from House lawmakers on Wednesday, particularly over whether they leverage unfair business practices to prevent their competition from succeeding. Is American antitrust law sufficient to handle the rapidly changing landscape of technology? Dipayan Ghosh of the Harvard Kennedy School joins Amna Nawaz to discuss. PBS NewsHour is supported by - https://www.pbs.org/newshour/about/funders