The C.E.O.s of America’s most influential technology companies — Amazon, Apple, Google and Facebook — were brought before Congress to answer a question: Are they too powerful?Today, 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.For more information on today’s episode, visit nytimes.com/thedaily Background reading: In 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.