PBS News Hour - Season 42 Episode 174 August 31, 2017
Overview: Thursday on the NewsHour, as flood waters recede in Houston, rescue crews go door-to-door and a chemical plant explosion fuels fears of challenges ahead. Also: Texans begin the long road to recovery, how robots are reshaping the U.S. economy, a young girl's quest for a mother figure in county prison and making scientific tools more accessible.