The introduction to this book asks the question: why study the governance of genome editing in agrifood? We discuss current system-wide, and country specific policy changes that have increased interest in using genomic techniques to make improvements to agronomic, nutritional/functional traits and organoleptic qualities of plants used for human food and animal feed. We discuss why applying supply chain and systems approaches are useful ways to view how the pace and applications of technological innovations in this sector are tempered by the political and economic dynamics of risk governance. This introductory chapter also includes discussions of the methodology, a brief review of studies of gene editing in the agrifood system, and outlines the structure of the book.