Andrew Jacobs, Behind Cry for Help From China Labor Camp. New York Times, June 12, 2013.
Note:
(a) Masanjia Labor Camp 马三家劳教所 http://en.wikipedia.org/wiki/Masanjia_Labor_Camp
(located in the Yuhong district near Shenyang 瀋陽市于洪区馬三家街道馬三家村; Established in 1956)
(b) onionskin (n): "a thin strong translucent paper of very light weight"