Zumret and Humar Isaac lost contact with their parents in November 2018. Since then, the two Uygur sisters from Xinjiang, China, have been on a quest to find out what happened. A phone call from someone claiming to work for the community affairs centre led the sisters to believe that their parents were sent to one of Xinjiang’s “re-education” facilities, where according to the UN, an estimated one million Uygurs are being held. The sisters launched a social media campaign calling for their…