Currently, humans lack the cognitive and moral capacities to prevent the widespread suffering associated with collective risks, like pandemics, climate change, or even asteroids. In Moral Enhancement and the Public Good, Parker Crutchfield argues for the controversial and initially counterintuitive claim that everyone should be administered a substance that makes us better people. Furthermore, he argues that it should be administered without our knowledge. That is, moral bioenhancement should be both compulsory and covert. Crutchfield demonstrates how our duty to future generations and our epistemic inability to promote the public good highlight the need for compulsory, covert moral bioenhancement. This not only gives us the best chance of preventing widespread suffering, compared to other interventions (or doing nothing), it also best promotes liberty, autonomy, and equality. In a final chapter, Crutchfield addresses the most salient objections to his argument.