The C.E.O.s of America\u2019s most influential technology companies \u2014 Amazon, Apple, Google and Facebook \u2014 were brought before Congress to answer a question: Are they too powerful?\n\nToday, we talk to our colleague who was in the room about what happened. Guest: Cecilia Kang, a technology and regulatory policy reporter for The New York Times.\n\nFor more information on today\u2019s episode, visit nytimes.com/thedaily\xa0\n\nBackground reading:\xa0In the hearing, the chiefs of Amazon, Apple, Google and Facebook faced withering questions from Democrats about anti-competitive practices and from Republicans about anti-conservative bias.