A federal judge in Iowa has temporarily blocked key parts of a state law that would ban books from school libraries if they depicted a “sex act.” The law also bars teachers from discussing gender identity and sexuality before seventh grade. Lisa Desjardins speaks with University of South Carolina law professor Derek Black and The Gazette’s Des Moines bureau chief Erin Murphy to learn more. Stream your PBS favorites with the PBS app: https://to.pbs.org/2Jb8twG Find more from PBS NewsHour at https://www.pbs.org/newshour Subscribe to our YouTube channel: https://bit.ly/2HfsCD6 Follow us: Facebook: http://www.pbs.org/newshour Twitter: http://www.twitter.com/newshour Instagram: http://www.instagram.com/newshour Subscribe: PBS NewsHour podcasts: https://www.pbs.org/newshour/podcasts Newsletters: https://www.pbs.org/newshour/subscribe