life in ad seg or shu isn't just a more intense experience for the inmate. correctional officers like diane vasquez are under the pressure of dealing with a different brand of criminal. >> working here in ad seg shu is very challenging. you deal with a lot of physical abuse, mental abuse, emotional abuse. it just depends on how much you let it affect you. you hear yelling. you hear cursing. you hear banging, kicking on the doors. this is how it is 24/7. at nighttime they don't sleep. anytime you're dealing with any of the inmates in here, you have to be ready to react to anything. you always just got to be prepared, know your options when you're dealing with different situations. you always have to think two steps ahead to prepare for whatever can happen.