So today could go down in history as the tech industry's big moment. For the first time, the four CEOs of tech giants Amazon, Apple, Facebook, Google will appear together before Congress - well, not exactly together, via digital video. Really the sign of our times, right? The big overarching question here - do the biggest tech companies use their power to hurt competitors and help themselves?
NPR's Alina Selyukh is here to cover this. And just to disclose that all four of these companies are among NPR's financial supporters. OK. Alina, it is not a secret that these companies are really big. So why is Congress doing this hearing now?