Despite its shortcomings, this captivating book has far-reaching implications for our future and an urgent message for national security leaders and elected officials. America in 2019 is a place where the value of agreed-upon truth holds fading relevance. Claims on Twitter that have long been conclusively defeated by objective research are often met with the respect generally accustomed to scientific principles. Spending a few hours poking around social media, one may find the Orwellian idea that two plus two can be made to equal five if enough people believe it. This embrace of deceit serves as a present danger for not only the United States but for the world.