Is artificial intelligence a global killer or an emerging technology which, if properly harnessed, can improve mankind? And what’s the significance of a low-level National Guard member being able to expose US military secrets? Hoover senior fellows Niall Ferguson, H.R. McMaster, and John Cochrane discuss the promise and perils of ever-improving AI and what if any damage came from the so-called “Geeky Leaks” scandal, plus their views on marijuana legalization as the world braces for the annual “420 Day” celebration. ABOUT THE SERIES GoodFellows, a weekly Hoover Institution broadcast, features senior fellows John Cochrane, Niall Ferguson, and H.R. McMaster discussing the social, economic, and geostrategic ramifications of this changed world. They can’t banter over lunch these days, but they continue their spirited conversation online about what comes next, as we look forward to an end to the crisis. For more on this series visit, https://www.hoover.org/goodfellows.