This book is so fascinating that I wanted it to be longer, but that’s also one of its problems; I suspect some pretty ruthless editing has truncated some of Lewis’s stories of the Trump Administration’s subversion of government data collection, which left me wanting more. Lewis profiles tens of federal agency innovators who, as he explains it, are “in it for the mission” and not “for the money” (191). He contrasts them with Trump cronies like Barry Meyers, CEO of AccuWeather, who would requisition taxpayer-funded weather info for paying customers only, forcing the rest of us to double-pay to avoid life-threatening weather incidents. The contrast is stark: between people motivated by a love of science, data, and its potential, and people whose only vision consists of how to monetize information. ‘The Fifth Risk’ documents the ignorance and venality of the Trump administration in ways that historians will depend on in the future and in ways that point to a better path for the rest of us.