Leave your feedback Share Copy URL https://www.pbs.org/newshour/show/pbs-newshour-full-episode-may-21-2015 Email Facebook Twitter LinkedIn Pinterest Tumblr Share on Facebook Share on Twitter Thursday on the News Hour... Thursday on the NewsHour, as the Islamic State gains ground, doubts rise over whether they can be stopped. Also: Restoring ties with Cuba, the Senate advances Obama’s trade agenda with Asia, the economic impact of drought on California’s fisherman, domestic violence charges dropped for Ray Rice, Yosemite’s nighttime rainbows and why some Chinese-American toddlers return to Asia. Listen to the Broadcast Subscribe to the Full Show Podcast Segments From This Episode News Wrap: Coast Guard says California oil spill cleanup may take months 3 min Is Cuba ready for the big business, tourism that U.S. will bring? 8 min Fishermen and farmers fight over water in California 8 min China's 'left behind' kids raised by grandparents while parents earn in U.S. 4 min What can the U.S. do to stop the Islamic State? 8 min Obama's trade bill narrowly clears Senate, but then hurdles remain 5 min Islamic State expands territory in Syria, Iraq and Libya 3 min Crowd-sourced timelapse images capture changes on the Vegas strip and the Vatican 1 min Photographers chase Yosemite's rare moonlight rainbows 5 min Ray Rice's assault charges were dropped. How unusual is that? 6 min