What kind of future are we building with the tools we have today? In this season of "Discoveries," Justine Underhill endeavors to answer that question. In this episode, she looks at internet-connected devices: What vulnerabilities are they creating, and do their benefits outweigh their risks? She investigates, along the way talking to security technologist Bruce Schneier, Chad Seaman of Akamai, short-seller Carson Block and Doug McKee of McAfee. Filmed in 2018 and 2019 in New York, Boston and Fort Lauderdale.