The goal of polio eradication remains elusive, with four countries still polio-endemic. In recent years, some in the scientific community have raised a difficult question: Can the world eradicate polio, or should we try to contain it? According to an article by Harvard researchers, controlling the disease would be far more costly than eradicating it. The developing world can save more than $1 billion a year by eradicating, while switching to a control strategy would condemn 10 million children to polio over the next 40 years alone. We must not lose sight of our vision of a world without polio. We must finish our work and hold true to our promise to the children of the world.