This video is a must-see for anyone interested in corrections and use of force. According to the news article, a secret source gave a flashdrive to one of the local reporters. The flashdrive had surveillance footage on it from a unit that experienced a riot. What you will see is perhaps one of the best arguments for the use of OC spray (aka mace) that can be made. As inmates fight and stab one another, a platoon of guards stand around, not engaging and not controlling the situation. At one point there are literally thirty officers in the unit, held at bay by a single inmate. It is hard to imagine what would have happened had the situation continued. I recommend that you watch the video.
Check it out here.