Your regular host, Molly Wood, has been in Las Vegas this week — at CES, to be more precise. So we’re going to check in with her and her big takeaways from the show this year. She called into our Marketplace studios from the CES show floor between interviews and panels. First, we started by talking about the big theme this year, 5G — the super-fast mobile broadband tech that’s supposed to revolutionize our online lives — and why we still don’t have it. The following is an edited transcript of our conversation.