As I think I might have mentioned, there are various sources. One is travel by Canadian diplomats and other diplomats to the region and sharing the information that we develop. One is from those people who've managed to get out and seek refugee status in the region, whether it's Southeast Asia or Turkey; in some cases, they've managed to come to Canada.
As I mentioned, the UN does have sources of information from a wide variety of people on the basis that their information will be held in confidence. I think you pointed to a real difficulty given the difficulty of both journalists and diplomats to access Xinjiang. Yes, we are certainly aware of the fact that some residents are so concerned about the extent of surveillance that they are not using the apps they would have had on their private cellphones out of concern that this will put them and their families at risk.