PBS News Weekend S05 E92 November 18, 2017

On this edition for Saturday, Nov. 18, nearly 200 countries, not including the U.S., agree to move forward on climate change. Also, the quest to develop a universal and long-lasting flu vaccine, and a report shows that black residents of Jacksonville, Florida, disproportionately receive pedestrian tickets. Hari Sreenivasan anchors from New York.