The craziest part of this visit was that there wasn't a single peep out of these guys. Not one sound. 
Discussion
What was this?
Imagine what the guards would do to them if they had.
This place doesn't have rules.
What's your point? Do you expect them to yell and curse? There is other videos of podcasters interviewing them.
So apparently they get extreme punishment if the move , they previously used filming to send gang signal communication to gang members who are outside watching the video , so now they are not allowed to make a move when cameras are filming
History will look back very harshly at these kind of videos