Leave your feedback Share Copy URL https://www.pbs.org/newshour/show/march-19-2023-pbs-news-weekend-full-episode Email Facebook Twitter LinkedIn Pinterest Tumblr Share on Facebook Share on Twitter Sunday on the NewsHour... Sunday on PBS News Weekend, a new allegation that Reagan’s 1980 campaign worked to sabotage President Carter’s efforts to free American hostages in Iran. A massive belt of seaweed in the Atlantic Ocean is threatening beaches in the U.S., Mexico and Caribbean. Then, how the growing world of #BookTok is driving book sales. Plus, the story of a 20th-century physicist who indelibly changed her field. Listen to the Broadcast Subscribe to the Full Show Podcast Segments From This Episode News Wrap: Putin makes unannounced stop in occupied Mariupol 3 min Expert analyzes new account of GOP deal that used Iran hostage crisis for gain 7 min A 5,000-mile-long mass of seaweed is coming to shore. Here’s what will happen 6 min How #BookTok is giving authors and booksellers a much-needed boost 5 min The career of Chien-Shiung Wu, the ‘First Lady of Physics’ 3 min