As NPR correspondent Emily Feng reported on the Kucar family, she encountered a mysterious figure working to keep her sources from speaking out. Later, she meets another Uyghur man who - perhaps unwillingly - becomes an actor within China's systems of control. These men are accused of working to silence others, but they say they've found themselves silenced as well. To listen to this series sponsor-free and support NPR, sign up for Embedded+ in Apple Podcasts or at plus.npr.org.Learn more about sponsor message choices: podcastchoices.com/adchoicesNPR Privacy Policy