This work investigates why the United States has consistently failed to intervene in foreign genocides despite its stated commitment to the principle of 'never again.' Samantha Power, a former journalist and later a high-ranking diplomat, utilizes extensive primary source interviews, declassified government documents, and historical analysis to examine the gap between American rhetoric and action. She argues that institutional inertia, political caution, and a lack of public pressure have historically prevented the U.S. from taking decisive measures to stop mass atrocities.

This text is widely regarded as a definitive, rigorous examination of American foreign policy regarding mass atrocities and human rights. Its dense, investigative approach provides a sobering look at the complexities of international intervention and the political costs of inaction.