Leave your feedback Share Copy URL https://www.pbs.org/newshour/show/pbs-newshour-full-episode-feb-3-2016 Email Facebook Twitter LinkedIn Pinterest Tumblr Share on Facebook Share on Twitter Wednesday on the News Hour... Wednesday on the NewsHour, Democratic candidates debate liberal credentials while Republicans brawl over victory margins. Also: How to fight the Zika virus, Sweden suffers vigilante violence over refugees, Yahoo faces financial struggles, a three-parent DNA treatment raises debate, big data meets modern medicine and how women are changing the way America works. Listen to the Broadcast Subscribe to the Full Show Podcast Segments From This Episode Sweden's welcome to refugees disturbed by violent backlash 9 min News Wrap: Syrian peace talks reach impasse after two days 4 min Mosquito breeding grounds are front line in fight against Zika 5 min Three-parent DNA treatment for rare defect raises debate 9 min What does Yahoo's downsizing mean for the tech giant's future? 4 min Democrats debate liberal credentials on the trail in N.H. 3 min Big data meets modern medicine in a life-saving equation 10 min How a critical mass of women can change an institution 6 min