January 31, 2015 PBS NewsHour Weekend : Season 3 Episode 9
PBS 26m
Aired: January 31st, 2015 @ 6:00 PM EST on PBS
ISIS claims to behead another Japanese captive. Later, what's behind China's crackdown on Internet access? And, in our signature segment, a look at the American city that produces enough renewable energy to cover all its energy needs.
