If you're talking about the one I think, the picture of inmates sitting in a yard wasn't fake, it was an official PR photograph for a seminar about (IIRC) educational programs available to inmates, showing inmates watching the seminar alongside their (out of frame) families. It just got spammed everywhere without context because "China + prison yard" is all it takes for chuds' imaginations to run wild.
If you're talking about the one I think, the picture of inmates sitting in a yard wasn't fake, it was an official PR photograph for a seminar about (IIRC) educational programs available to inmates, showing inmates watching the seminar alongside their (out of frame) families. It just got spammed everywhere without context because "China + prison yard" is all it takes for chuds' imaginations to run wild.