PBS News Weekend S05 E100 December 16, 2017

On this edition for Saturday, Dec. 16, more details emerge about the Republican tax bill as it nears a final vote next week, and how the lack of electricity in Puerto Rico after Hurricane Maria is impacting life on the island. Later, the first of our two-part series on unregulated chemicals in drinking water. Hari Sreenivasan anchors from New York.