>> every anarchy of prison you can think of with adults, we have the same sub-systems here. >> with as many as 48 violent teens kept in a confined area of the facility, the segregation unit has a society all its own. where cell phones and ipods are replaced by a fast paced secretive process called cadillacing. >> sometimes it takes awhile. you got to tear a hole in your mat. then put string about it. put some paper around it. make it in a square. slide it out your door. so you can pass food and notes. >> the strings come from the mattresses. they're hard strings so they can't cut you. they can choke people. mostly they're used for trafficking. coming up -- >> the day you walk through the port and you're comfortable and not apprehensive coming through the front gate, might be time to