This week the U.S. government filed suit against Google. Smart move, or just politics? And, which member of big tech -- Amazon, Facebook, Apple -- is next?

Google is a behemoth. It owns search in English and many other languages and, with Facebook, dominates digital advertising. But is it a monopoly? And should the government have filed antitrust charges?

To dive into the story, we’re chatting with Greg Sterling, VP of insights at Uberall. He's a former lawyer and journalist.