Leave your feedback Share Copy URL https://www.pbs.org/newshour/show/pbs-newshour-full-episode-feb-12-2015 Email Facebook Twitter LinkedIn Pinterest Tumblr Share on Facebook Share on Twitter Thursday on the NewsHour... On the PBS NewsHour Thursday, A marathon of peace talks on Ukraine ends with a ceasefire deal, Miles O’Brien explores the latest technology powering robotic arms, Paul Solman on the economics of dating, and the tale of how a reclusive Chicago woman came to be known as one of the greatest photographers of the 20th Century, only after her death. Listen to the Broadcast Subscribe to the Full Show Podcast Segments From This Episode Using rational economics to simplify the search for romance 8 min How professional survey-takers are shaping scientific research 5 min Why is Iran holding a U.S. journalist? 7 min News Wrap: Greece agrees to bailout talks with EU officials 4 min Bringing a portrait of private artist Vivian Maier to the big screen Will a robotic arm ever have the full functionality of a human limb? 10 min Will the Ukraine-Russia deal stick? 8 min Minsk deal offers ‘glimmer of hope’ amid major obstacles for Ukraine, Russia 3 min Creating live cinema with puppets and shadow 3 min