As the world's richest nations struggle with vaccine rollout, a more daunting question looms: When will the world's poorest nations get the COVID-19 vaccine? Of course, some vaccines have already reached the developing world, but World Bank President David Malpass says it may not be until the second half of 2021, or even well into 2022, that distribution becomes widespread. His conversation with Ian Bremmer is part of an upcoming episode of GZERO World, airing on public television nationwide beginning this Friday, January 15th. Check local listings.