Even in the context of all the things that are happening in the country right now, Monday is going to be a pretty big day. The CEOs of Amazon, Apple, Facebook and Google will testify before the House Judiciary Committee as part of Congress’ antitrust investigation. It’s the first time all four have appeared together and the first time Jeff Bezos has shown up. But like congressional hearings that have come before, it’s probably going to be a mess. Molly Wood speaks with Cecilia Kang, who covers tech policy for the New York Times.