>> reporter: a mug shot of his younger brother taken into detention. how did he look? >> he looked like he lost his soul. it gives you a feeling of guilt. they are tied to you and pers persecuted. not easy to digest. >> reporter: a photo of them in happier times. >> i wish i could go back to this moment. today, he is piecing together what happened to his family. and the level of detail on people who are never accused of crimes is chilling. >> fingerprints. dna samples. profile pictures, iris scans. these are the biometric information they collected on my mother. you see this example of a full-blown surveillance state. >> reporter: half a world away, in adalaide, australia, she just