Leave your feedback Share Copy URL https://www.pbs.org/newshour/show/pbs-newshour-weekend-full-episode-march-21-2015 Email Facebook Twitter LinkedIn Pinterest Tumblr Share on Facebook Share on Twitter Saturday on the News Hour... On this edition for Saturday, March 21, 2015, the United States and Iran report new momentum in negotiations to strike a nuclear deal, a new drug shows early promise as a treatment for people with Alzheimer's, and in our signature segment, an American army veteran returns to Iraq to defend the Christian faith against the Islamic State. Hari Sreenivasan anchors from New York. Listen to the Broadcast Subscribe to the Full Show Podcast Segments From This Episode Is legalizing sports gambling a mad idea? 10 min Swings in currency market, stock prices cap Wall Street’s chaotic week 3 min Oldest American female veteran Lucy Coffey dies at 108 2 min New drug shows promise slowing Alzheimer’s in early tests Former U.S. soldier joins militia to defend Christian faith in Iraq 7 min