use what we call a scat round. which is really irritating. see, those ar little bit louder. the smoke you see there, that's cn gas. it's no fun. it messes up your sight, makes you, you know, makes your snot roll. and of course, we have a lethal option. we have a mini-14 here, .223 round. we use that as a last resort. >> today, california state prison corcoran no longer has to resort to drastic measures to control violence in the shu yard. they closed the yards down and now inmates exercise in walk-alone areas called the cages. but even when officers are able to quell violence, sorting out its cause can be just as difficult. as our crews found out at the spring creek correctional center in seward, alaska. >> slow down. slow down, mr. seiko, slow down. >> blood on the floor over there. blood pathogens need to be cleaned up. >> mr. seiko, you need to