The Department of Justice and the Federal Trade Commission are taking early steps into investigating tech giants Google, Apple, Facebook and Amazon. Meanwhile, lawmakers in the House of Representatives are looking into whether tech companies are too big. Plus, where the term "intersectionality" originated, what it means and why it's popping up in culture more and more. NPR Congressional reporter Kelsey Snell and Washington Post tech reporter Tony Romm join Sam for a look back at this week.