With a mix of new technology and old fashioned snooping, China has built an extraordinary system of mass surveillance to monitor its Uighur minority.
From collecting DNA samples to tracking religious habits and even individual electricity use, China appears to be building a vast security database to control the 13 million Uighurs that live in its western Xinjiang province.
On this edition of Global Journalist, a look at the vast surveillance program that underpins China's "Strike Hard Against Violent Extremism" campaign.
Joining the program:
- Sophie Richardson, China director, Human Rights Watch
- Chris Buckley, China correspondent, New York Times
- Dahlia Peterson, research analyst, Center for Security and Emerging Technology, Georgetown University
- Omer Kanat, vice president, World Uyghur Congress
Assistant producers: Laura Miserez, Arianna Suardi Supervising producer: Trevor Hook Visual editor: Benjamin Brink