These members of Congress did their homework: “Facebook CEO Mark Zuckerberg made his second of two appearances before Congress on Wednesday, enduring a five-hour session of questions from members of the House Energy and Commerce Committee. In contrast to their amiably confused counterparts in the Senate, members of the House committee demonstrated a generally better command of how Facebook works and how its efforts to develop richly detailed advertising profiles for billions of people have created privacy concerns around the world. As with yesterday, Facebook sought to promote steps it has already taken to address the fallout of the Cambridge Analytica data privacy scandal. But House members spent less time on Cambridge Analytica in favor of asking about a broader range of subjects, including how Facebook tracks people around the web, privacy protections for minors, and Facebook’s consent decree with the Federal Trade Commission. Here are the seven most notable developments from today’s hearing…”