Claims that “re-education” camps are merely vocational training centers seem even less credible after one looks at the work of Shawn Zhang. A law student focusing on jurisprudence at the University of British Columbia in Canada, in May Zhang began scouring Google Earth for evidence of detentions in Xinjiang—matching up the addresses he found in documents related to the camps that he found online with satellite images; learning to recognize the distinguishing characteristics of camps, both in written materials and in images so that he could confidently identify them even in cases where details were scant. His collection of satellite images is a key and oft-cited piece of evidence of the camps’ existence, laying bare the hard physical contours of a campaign of ethnic and religious repression. Zhang, a Chinese citizen, continues to do this research despite the fact that the Chinese police have previously pressured his family related to other content he has posted online.