PBS News Hour S44 E162 August 14, 2019

Wednesday on the NewsHour, political unrest simmers in Hong Kong, prompting questions about whether China will unleash a crackdown. Plus: Volatility in the stock market, the danger of coal ash spilling into drinking water, rising temperatures in certain parts of the U.S., Ronald Reagan's complicated race legacy and a festival of folk art that showcases culture and promotes economic opportunity.