Friday, Dec. 29, 2023 at 10 a.m. on KPBS 2 / Stream now with the PBS App. How can we reimagine trade to help countries left behind by globalization? Can we trade our way out of the world's biggest crises? GZERO sits down with one of the most powerful voices in the global economy, WTO Director-General Ngozi Okonjo-Iweala.