Leave your feedback Share Copy URL https://www.pbs.org/newshour/show/pbs-newshour-weekend-full-episode-sept-21-2014 Email Facebook Twitter LinkedIn Pinterest Tumblr Share on Facebook Share on Twitter Sunday on the News Hour... On this edition of PBS NewsHour Weekend for Sunday, Sept. 21, 2014, hundreds of thousands turn out in New York City and around the world to demand action to halt climate change. Miles O'Brien explains why a new mission to Mars matters to the international community. Finally, in our signature segment, the rise of a far-right party in Hungary pledges a crackdown against the area's Roma population. Hari Sreenivasan anchors from New York. Listen to the Broadcast Subscribe to the Full Show Podcast Segments From This Episode Where does the global community stand on climate change action? Man on Mars? NASA’s Maven spacecraft explores the possibility