Tuna, and how to fish it in the eastern Pacific, has long been a matter of dispute for lawmakers and consumers in the United States, Europe and Latin America. On one side, we have those who believe that sound methods of fishing for tuna do exist, whereas on the other are radicals, in whose minds the idea that all tuna fishing will lead to the death of dolphins is paramount. In reality, a mechanism that would render all tuna completely “dolphin-safe” is yet to be found after more than two decades of debate. If found, it could resolve the long controversy and guarantee the future of the fishing industry in the eastern Pacific. This article considers the latest decision in this case but first, it will briefly recap the long process of addressing the international legal and practical aspects of regulating commercial tuna fishing for purposes of protecting dolphins.