 Download the NPR radio app. We have the blend of local, national, and international news you need. Plus, you can listen to our sister stations, The Current, Your Classical, and NPR News 2. Search for NPR on your phone's app store. I'm Carrie Miller. Novelist Nicola Yoon asks, what if your utopia of like-minded people harbors a devastating secret? Her new novel is thrilling, funny, and sinister. Listen Friday at 11.